The perils of European debt crisis: divergence, retreat or decline?

Recent debacle at the summit of Bruselles in the midst of the political intervention of the EU leaders to facilitate the institutional agreement between the European countries towards the formation of the European fiscal union has caused not only a long-standing dissolution of the “core countries” of the Eurozone and the UK but, more importantly, a non-solvable puzzle on the end scenario of the European debt crisis that pervaded both the eurozone and the countries outside it ever since the beginning of the 2008/2009 financial crisis. The anatomy of the European debt crisis is a multifaceted process that is heavily interrelated with the economic principles of the process of European integration and the unintended consequences that erupted in the recent debt crisis.

The introduction of Maastricht criteria that stipulated fiscal prudence by obliging EU member states to adhere to the level of public debt below 60 percent of the GDP and low fiscal deficit boosted the expectations of stable macroeconomic environment, partly sustained by the European Central Bank which, since its inception in 1999, successfully maintained price stability. Despite an enviable achievement in the stabilization of inflation expectations, the EU Treaty did not stipulate stringent fiscal rules in case of the breach of treaty obligations on behalf of EU member states, neither has European Growth and Stability Pact (EGSP) provided selective mechanisms that would hinge on the EU member state in case Maastricht criteria were not fulfilled. On the other hand, the gradual enlargement of the European union did not finalize in the economic union characterized by the realization of four basic freedoms.

In 1977, Portugal and Spain were acceded into the European Union. Four years late, Greece was admitted as the 12th member of the European community. Over time, the EU grew from an integrated area of 15 Western European countries into a conglomerate of nations that did not impinge of the full-fledged liberalization of the internal market in 1988 but, moreover, has evolved into the spiral that accelerated the community toward the political union. In the mean time, member states of the Eurozone have continuously breached the rules laid out by Maastricht treaty. In bearing the fiscal consequences of the reunification, Germany repeatedly breached the Maastricht criteria both in public debt and fiscal deficit which postponed the introduction of the Euro, following a large shock from gigantic fiscal transfers from high-income West Germany into low-income East German regions. In a similar manner, until 2005, France did not manage to reduce the debt-to-GDP ratio under the 60 percent threshold stipulated by the Maastricht criteria.

Nevertheless, peripheral countries such as Spain and Portugal entered the Eurozone at an overvalued exchange rate relative to German mark before the introduction of the common currency. In the following years, these countries, notably Spain, accumulated significant current account surpluses resulted from the inflows of direct investment from the core countries such as Germany and France. These surpluses were, of course, artificial in the sense that the downward convergence of interest rates in the peripheral countries stimulated the over-leveraging of the financial sector which triggered a balloon in the housing sector.

For years, Italy and Greece have repeatedly breached the Maastricht treaty in the fiscal sense. Prior to adjoining the European Monetary Union, Greece repeatedly experienced volatile inflation rates and default on its external obligations and subsequent Drachma depreciation. Italy’s macroeconomic stabilization hinged on the discretion of government spending which, after excessive rises under various transition governments, cumulated in one of the highest debt ratios within the EMU. How could EMU countries, despite a stringent set of rules delineated by the Treaty of Maastricht, pursued discretionary fiscal policies and jeopardized the macroeconomic stability of the national economies and the Eurozone?

Prior to the onset of the financial crisis by the end of 2007, little was known on the perils of excessively leveraged balance sheets which investment banks used to seek high rates of return on high-yield and relatively risky peripheral regions. Until 2007, the exposure of major German investment to over-leveraged financial sector in countries such as Spain and Greece generated sizeable spillover effect. Before the onset of the financial crisis, Spain enjoyed sizeable current account deficit resulted from excessively high and robust overall investment. In 2007, Spain’s investment-to-GDP ratio (31 percent) was roughly comparable to developing Asia. In such highly volatile environment where economic growth departed from its long-run fundamentals, even small-scale macroeconomic shocks can result in a substantial loss of economic activity, notwithstanding the spillovers in the banking system and labor market.

The asymmetry in political structures and underlying macroeconomic fundamentals across member countries casts significant doubt in the long-term stability of the Eurozone as an area with common monetary policy. The necessary condition for the inception of common monetary policy does not hinge on the political initiatives that pervaded the process of European integration but on the careful consideration whether adjoining countries adhere to the macroeconomic criteria as denoted by the Maastricht Treaty. The failure to adhere to the contours of fiscal prudence and budgetary discipline by the major EU member states, with few notable exceptions such as the Netherlands, Austria and Finland, lies at heart of the underlying reasons why significant asymmetry and non-coordination in fiscal policy resulted in the adoption of dispersed economic policies whereas the adverse outcomes were not foreseen neither by the politicians neither by policy advisers and academics.

To a large extent, as the recent debt crisis has succinctly demonstrated, the ultimate goal of the European monetary integration was the build-up of political union. But whereas European politicians were preoccupied with all-embracing design of the EU as unitary political union, they forgot to acknowledge that political union would require the full convergence of economic policies including the integration of the labor market which hardly any political initiative within the EU deemed feasible.

The non-coordination of fiscal policymakers was highly evident in the division of member states on the core countries and EU periphery. Considering the peripherical countries, Italy, Spain, Portugal and Greece repeatedly proved ill-disciplined in managing the levels of public debt and the magnitude of the budgetary imbalance. Portugal is often the case in point. Prior to the introduction of the Euro, Portugal experienced unprecedented economic boom. Between 1995 and 2001, economic growth averaged 4 percent per annum and the unemployment rate reduced from 7 percent to 4 percent by the end of 2001.

At the same time, nominal wages grew rapidly without the necessary productivity growth compensating for the increase unit labor cost. Alongside the overheating of economic activity, driven by construction boom, current account deficits increased significantly, lowering domestic savings rate. After the country experienced a mild recession in 2003 when domestic output decreased by 1 percent on the annual basis, the slowing of artificial economic growth driven by the Euro boom, turned from temporary into permanent. In the period 2002-2010, growth of domestic output averaged at the level of no more than 1 percent per annum with stagnating productivity and significant pressure on nominal wages. Since the size of the labor cost is the major deterrent on growth, the cure for Portuguese ailing economy is the structural adjustment in the public sector such as the reduction of public debt by generating substantial primary fiscal surpluses and the lowering of government spending. Similarly, the experience of Greece, Spain and Italy suggests the evolution of the same pattern evolving over time although Italy has been known as low-growing economy during the boom time.

However, fiscal policymakers in peripheral countries repeatedly produced ill-conceived fiscal mismanagement of public finances. In 2008, the level of budgetary deficit in Greece exceeded 13 percent of the GDP whereas the country has not adhered to Maastricht criteria ever since the introduction of the Euro. After the depreciation, the net debt as percent of GDP in Greece reached 85 percent of GDP and increased to 110 percent of GDP by the end of 2008. As IMF’s recent forecasts suggest, by 2012, Greece’s public net debt could reach 175 percent of GDP.

The failure to adhere to the common set of principles as delegated by the Maastricht treaty and EU Stability and Growth Pact in the peripheral countries stemmed largely from the mismanagement of public finances and structural rigidity of the public sector with resulting increases in the burden of the labor cost. In addition, the adoption of extraordinary measures embedded in the public sector such as very low effective retirement age and substantial bonuses for civil servants exacerbated the burden of the public debt with unforeseen net financial liabilities of governments which have not mitigated the persistent burden of public debt that grew substantially over time in the EU periphery.

A natural question is whether the exclusion of peripheral countries from the Eurozone might be feasible and whether Greece’s default on external obligations might help overcome country’s mountainous strain on public debt. First, the re-adoption of domestic currencies is hardly a solution to overcome the intricacies of debt crisis. If Greece re-introduced drachma, external obligations would be strained by a painful and enduring bank run since investors would withdraw the deposits from the portfolio and invest it into safer holding with less volatility and uncertainty ahead. Another argument in favor of Greece exiting the Eurozone is that a devaluation of drachma would boost inflationary expectations and consequently reduce the burden of the public debt but given junk score on government bonds, a rather immediate bank run would follow the devaluation of drachma rather than macroeconomic stabilization.

In addition, when Greece’s domestic output is growing far below the long-term potential, inflationary expectations is not a feasible tool to revive the economy from deflationary trap with 16 percent unemployment Moreover, the only feasible and meaningful short-term strategy to boost growth is the reduction of the size of the public sector including the privatization of inefficient state-owned enterprises to generate substantial fiscal surpluses since this is the only plausible measure to tackle the increasing burden of the public debt. As the history of financial crises suggests, the eruptions of banking crises occurred mostly when governments rested on currency devaluations as the ultimate tool to reduce the burden of external debt. In addition, if Greece defaulted on its external obligations, CDS spreads could indicate a snowball effect where Spain, Portugal and possibly Italy could follow the same track.

The question is whether non-coordination between European fiscal policies helped facilitate over-leveraged financial sectors which asked for the bailout by central governments in the wake of the 2008/2009 financial crisis. Over-leveraged financial sectors were attributed to the determinants of various extent. Some argued that over-leveraging is the outcome of innovative financial engineering where fancy mathematicians and physicists applied VaR models to calculate the probability of losses in the portfolio distribution of returns whereas the financial derivative schemes developed by advanced and complex mathematical models were so complicated that nobody, sometimes even mathematicians themselves, could understand sensibly.

On the other hand, the monetary policy perspective of over-leveraged financial sectors has been rather overlooked in policy discussions since periodically low interest rates encourage excessive risk-taking which further facilitated the construction of portfolios with excessively volatile returns that increasingly relied on VaR assumptions whilst fundamentally ignoring the instability of returns from over-leveraged investments. But a more intriguing question pertaining to the banking perspective of financial crises is whether more prudent financial regulation as envisaged from recent stress tests by European Banking Authority can be achieved by raising capital adequacy standards. Unfortunately, the history of Basel accords demonstrates that the banking sector has been prone to search alternative channels to avoid raising capital adequacy ratios through innovative accounting tricks whereas neither Basel I and II envisaged the adverse outcomes from excessive risk-taking. As stress tests indicated, capital adequacy ratios should be increased substantially but, moreover, the regulatory framework should not only build on increasing criteria on Tier I capital and common equity but also on the safeguard despositary insurance of contingent liabilities to mitigate liquidity risk that led to the systemic crisis.

The solution to revive the Eurozone economy and revive it from a decade of flawed political imperatives should not exclude multiple options. The focal point of the Eurozone’s recovery from debt crisis should be to help peripheral countries establishment fiscal prudence, discipline and soundness of the public finances. In fact, the recovery from the debt crisis will endure for more than a decade. The structural adjustment does not rest on the ability of the EU to provide financial assistance to peripheral countries but on the principled and coordinated action to reform inefficient public sectors which are at the heart of the debt spiral since years of generous entitlements to civil servants have tremendously raised the net present value of public debt to the point that peripheral countries are on the brink of default on its external obligations. Without generating substantial fiscal surpluses, there is no feasibility and no realistic scenario under which public debt level would be brought under the control in the near-term perspective. Hence, recent discussions of the consequences of debt crisis in Europe have simply overlooked the importance of growth-enhancing measures as the real cure for growing debt-to-GDP ratio where the measures do not apply to peripheral countries only.

First, in the wake of fiscal insolvency of public pension systems, effective retirement age should be raised substantially for men and women alike. The studies have shown that under the increase in effective retirement age to 65 years, long-term fiscal obligations would reduce and consequently an important step towards long-term macroeconomic stability would be achieved. Nearly every European country is facing low-fertility trap followed from increased affluence and generous early-retirement policies from 1970s onward. Consequently, European government have amounted a mountain of net financial liabilities that exceeded the size of GDP by several times, respectively. Decreasing the size of net liabilities to contemporary and future generations of retirees, requires a robust increase in effective retirement age. Higher retirement age threshold would substantially increase working-age population by encouraging labor market participation among the elderly. Current levels of effective retirement age are unsustainable in the long-run since a growing burden of pension obligations can seriously threaten the stability of the public finance and increase the probability of fiscal insolvency.

Second, European countries suffer from low productivity growth. In some countries, such as Italy productivity growth has remained stagnant over the course of recent two decades while elsewhere productivity growth is to slow to compensate for the increase in nominal wage rates. The evidence, in fact, overwhelmingly suggested that high tax rates are the prime obstacle to greater labor market participation, particularly among the elderly who face high implicit tax rates on work. In particular, to facilitate the channels of productivity growth, marginal tax rates should be decreased substantially. At current levels, marginal tax rates restrain labor supply significantly. In the Netherlands, the top marginal income tax rates reached 52 percent in 2011 which is a serious hinder on the working activity. In this respect, bold tax reforms should be complemented with more flexible labor markets which remain saddled with employment regulations and distort labor supply incentives. Less regulated labor market to supplement greater labor force participation, especially among women, elderly and the youth is vital to enhance productivity growth since living standards by the end of the day are determined by productivity improvements.

Ultimately and most importantly, peripheral countries should be given a free choice whether to withdraw from the EMU since recent financial crisis has shown that Eurozone is a suboptimal currency area which emerged from non-cooperative fiscal policies among its member states that caused adverse outcomes and asymmetric adjustment where macroeconomic stabilization outcomes are mutually exclusive among member states. Asymmetry adjustment that currently threatens the existence and stability of Eurozone lies at the heart of Eurozone’s debt crisis. As a general matter, economic policies have failed to recognize that structural measures in the labor market and fiscal policy regime could facilitate growth enhancement and provide the necessary impetus to stabilization of crisis-impeded monetary union. Recent suggestions by France and Germany for EU member states to form a fiscal union have led to sustained resistance from the UK which dissolved from the fiscal pact.

The ultimate grain of truth in the fiscal union is that a monetary union necessarily requires the coordination of fiscal policies to prevent adverse and asymmetric policy outcomes within the union. The fateful conclusion from recent EU debt crisis is that without the integration of the labor market on the EU level, the monetary integration cannot exist in coherence with asymmetric fiscal policies. In the future, stricter adherence to budgetary discipline will be necessary through budgetary authority. In this respect, countries that fail to adhere to Maastricht criteria and deviate from the fiscal discipline either marginally or substantially should be condemned and pay for their actions of fiscal imprudence by withdrawing from the monetary union.

Can the Eurozone survive?

The ongoing difficulties in overcoming the persistence of debt-to-GDP ratio in EU countries highlight the question whether the European Monetary Union can survive the set of shocks which prevailed since the 2008/2009 economic and financial crisis. Recently, European Commission has prested the 2010 review of public finances in EMU (link), suggesting that macroeconomic outlook for Eurozone economies has deteriorated in the light of a growing debt-to-GDP ratio.

The launch of government bailouts in various European countries has added considerable amount to the stock of public debt across the Eurozone. Since 2008/2009, general government balance in Eurozone countries has continually resulted in persistent government deficits which further added to the stock of debt. Since public debt is by definition the sum of previous deficits, the European macroeconomic outlook suffers significantly from downgraded stability of public debt.

The anatomy of sluggish economic recovery in Eurozone consists of different set of economic policies. Countries at the European periphery (Portugal, Ireland, Greece, Italy, Spain) seem to be hit most by the sluggish economic recovery. From the viewpoint of macreconomic stability, the economic policymakers in these countries have pursued the most discretionary economic policies to mitigate the effects of decline in GDP on employment, earnings and tax revenues. In addition, highly expansionary monetary policy by the European Central Bank provided a bulk of quantitative easing, resulting flooding liquidity to supplement the interbank lending and, hence, to contain the effect of overleveraged financial sector on macroeconomic stability. In Ireland, income per capita in 2010 notably decline back to 2004 level (link). As I previously emphasized in one of my previous posts (link), the depth of the economic crisis in Ireland is largely attributed to the overleveraged banking sector, vulnerable to the interbank interest rate increases. Since the sovereign CDS spread on Ireland exceeded 500 basis points in late September this year, the Irish public finance outlook deteriorated significantly in the light of the innate ability of the Irish government to bailout Anglo-Irish Bank. Recently, the IMF estimated (link) that by 2012, Irish debt-to-GDP ratio would reach 67 percent, up from 12 percent in 2005.

A prudent reduction in debt-to-GDP would be accomplished only under restrictive fiscal policy based on the reduction in government spending and a permanent fiscal rule on budget surplus at a given target level. If Irish government set the surplus target at 3 percent of GDP in the next ten years, debt-to-GDP ratio could be considerably reduced within the range of Maastricht fiscal criteria.

The macroeconomic outlook in peripheral countries suffers from high fiscal expenditures and rigid labor market institutions. By 2012, Portugal's debt-to-GDP ratio is expected to reach nearly 85 percent of GDP. In addition to soaring public debt, the Mediterranean part of the EMU suffers heavily from high unemployment rate. Eurostat recently reported that, by October 2010, the unemployment rate in Spain reached an astonishing 20.7 percent. Double-digit unemployment rate in Spain, Greece (12.2 percent) and Portugal (11 percent) hamper the economic recovery since, in the past, these countries exercised expansionary fiscal policy and the policy of automatic stabilizers to mitigate the effects of high unemployment on aggregate consumption decline. In the aftermath of financial crisis, these countries experienced recessionary output gap in which economic contraction is marred by unchanged inflationary pressures.

Since EMU countries withheld domestic currencies and adhered the adoption of the Euro, the macroeconomic adjustment to the recovery is possible only by a prudent fiscal policy. High unemployment rates and a persistent divergence of economic policies in EMU countries could substantially increase discretionary fiscal policies that would eventually result in the serious possibility of country default. The economic crisis in Greece resulted in 11 percent cumulative GDP decline between 2010 and 2012. In the same period, government net debt is expected to reach the 120 percent of GDP thresold. A divergence between Member States towards highly discretionary fiscal policy would probably alleviate the persistence of high unemployment but at the expense of bold increase in the rate of inflation as well as in the persistence of debt-to-GDP ratio and large government imbalances. Hence, the survival of the Eurozone would depend on the ability of EU Member States to adjust government balance by reducing fiscal expenditure and adopt the fiscal rule to pursue fiscal surplus in the coming years as to reduce the stock of public debt.

Even though a common fiscal policy could accomplish the goals of stabilization policy, the mitigation of fiscal asymmetries would be easily accomplished by labor market integration. A currency union between different countries implies integrated and assimilated labor markets under relatively homogenous preferences. It would be nearly impossible to envision the European Monetary Union without these key macroeconomic features.

Bush tax cuts and economic growth

In 2001 and 2003, former U.S president George W. Bush signed Economic Growth and Tax Relief Act (EGTRAA) and Jobs and Growth Tax Relief Reconciliation Act (JGTRAA). EGTRAA reduced personal income tax rates, increased child tax credit, decreased estate tax and introduced a various range of tax-favored retirement savings plans. In 2003 when EGTRAA was enacted, the Congress cut the top capital gains tax rate from 20 percent to 15 percent while the individual dividend tax rate was reduced from 35 percent to 15 percent.

Bush tax cuts are set to expire in 2011. Hence, a bold increase in marginal tax rates is expected. David Leonhardt recently asked whether the Bush tax cuts were good for economic growth amid the fact that under Bush administration, the U.S economic growth was the lowest since the World War II. Eight years of Bush administration were known for the largest expansion of federal government spending compared to the six preceding presidents. In eight years, President Bush increased discretionary federal outlays by 104 percent compared to 11 percent increase under President Clinton.

Under Bush tax cuts, the reduction in personal income tax rates was imposed across all income brackets. Tax Policy Center estimated that extending Bush tax cuts in 2011 would increase the after-tax income across all income quintiles but it differed substantially. For instance, the increase in after-tax income in the lowest quintile would represent 12.19 percent of the increase in after-tax income of the highest quintile. The average federal tax rate would decrease by 2.5 percentage points. The reduction in average federal tax rate would be the most significant for top 1 percent and 0.1 percent cash income percentile, -3.8 percentage points and -4.4 percentage points respectively. Assuming the extension of the Bush tax cuts, the average federal tax rate, which includes indvidual income tax rate, corporate income tax rate, social security, Medicare and estate tax, would be substantially lower compared to Obama Administration's FY2011 Budget Proposal. The increase in the average federal tax rate would be roughly proportional across the cash income distribution. The federal tax rate would increase by 1 percentage point for the lowest quintile and 3.1 percentage point for the top quintile. The federal tax rate would for earners in top 1 percent of cash income distribution would increase by 4.2 percentage point. The chart shows the distribution of average effective tax rates and current law and current policy of Bush tax cuts not assumed to expire in 2011. The current proposal would increase the effective tax rate across all income quintiles. The highest increase (3.3 percentage points) would hit the earners in top 20 percent of income distribution.

Effective Tax Rates: A Comparison

Source: Urban-Brookings Tax Policy Center Microsimulation Model

The expiration of the Bush tax cuts would substantially increase the effective tax burden across the cash income distribution. Recently, Center on Budget and Policy Priorities estimated that letting the Bush tax cuts expire would create a net gain of $22 billion in economic activity. Hence, allowing high-income tax cuts expire would, on impact, result in a net gain of $42 billion in economic activity which is about five times the economic stimulus from extending high-income tax cuts.

The years of the Bush administration were earmarked by the escalation of federal government spending both in absolute and relative terms. The growth in federal government spending was driven mostly by discretionary defense spending while non-discretionary federal outlays increased as well. Since 2001, the federal government spending in the Bush administration increased by 28.8 percent with a 35.7 percent growth in non-defense discretionary spending. The growth of the federal government under Bush administration was the highest since the presidency of Lyndon B. Johnson and Richard Nixon. The Independent Institute compared the growth of federal government spending from Lyndon B. Johnson onwards.

Letting the Bush tax cuts expire would probably not impose a negative effect on small businesses since less than 2 percent of tax returns in the top 2 income brackets are filed by taxpayers reporting small business. William Gale contends that the Bush tax cuts significantly raised the government debt. The economic consequences of the 9/11 and wars in Iraq and Afghanistan were detrimental. William Nordhaus estimated that the total cost of war in Iraq between 2003 and 2012 could exceed $1 trillion in 2002 dollars considering unfavorable and protracted cost scenario. To a large extent, the wars in Iraq and Afghanistan have added substantially to the increase in government spending. However, even after excluding defense outlays from the spending structure, the increase in non-defense discretionary spending exceeded the growth of the federal government spending by 5.6 percentage points. Between 2000 and 2008, the number of federal subsidy programs increased from 1,425 to 1,804 - a 26 percent increase compared to 21 percent increase during Clinton years.

The Bush tax cuts failed to result in a Laffer curve effect mostly because they were implemented alongside a bold and significant increase in federal government spending. Had a substantial reduction in government spending been enforced, the tax cuts would not place should an enormous weight in the growth of federal debt. Higher federal debt would inevitably ponder the structural fiscal imbalance. Since debt interest payments would increase, a combination of tax cuts and spending growth would stimulate investment demand, creating an upward pressure on interest rates, especially during the economic recovery when the difference between potential output and real output is expected to diminish.

Critics of the Bush tax cuts often claim that cuts amassed a growing fiscal deficit. However, in 2007, the fiscal deficit stood at 1.2 percent of the U.S GDP while in 2009, the deficit increased to 9.9 percent of the GDP as a result of $787 billion fiscal stimulus from Obama Administration. Since tax cuts were enacted in 2001 and 2003 respectively, something else is to blame for the deficit.

U.S Federal Debt: Long-Term Forecast

Source: Office of Budget and Management; author's own estimate

The main premise of the economic policy of the Bush administration had been a significant increase in federal government spending. Spending policies were mostly aimed at covering the growing cost of the Iraqi war. In addition, domestic non-defense outlays on social security and domestic priorities grew significantly, creating an upward pressue on federal debt. The growth of entitlments such as Social Security and Medicare poses a serious long-term risk regarding the sustainability of federal government spending. In the upper chart built a simple forecasting framework to estimate the long-run level of U.S federal government debt as a percent of the GDP. Surprisingly, time trend accounts for 85 percent of the variability of the share of federal debt in the GDP. A more robust framework would include the lagged dependent variable and several regressors in the set of explanatory variables to increase the share of variance explained by independent effects of regressors. The results indicate that by 2020, the federal debt could easily reach the 90 percent thresold.

The growing stock of entitlements such as Social Security and Medicare are central to understanding the looming pressure on federal budget to tackle the challenges of ageing population and demand for health care. The tax cuts imposed by the Bush administration reduced average federal tax rates across quintiles in cash income distribution. However, tax cuts were no supplemented by the reduction in federal government spending. Consequently, the growth of federal government spending increased future interest debt payments and failed to take into account the long-term pressure of Medicare and Social Security on federal budget set. Extending the Bush tax cuts would be superior to letting them expire. But lowering tax burden should nevertheless be comprehended by the reduction in federal government spending.

Public pension crisis in OECD countries

The central aim of my bachelor's thesis is to demonstrate the unsustainability of public pension system in OECD countries in the longer run through the lens of a rigorous theoretical and empirical analysis.

The origins of contemporary public pension schemes date back to 19th century when Bismarckian Germany in 1881 first adopted a universal old-age public pension system based on pay-as-you-go (PAYG) funding principle. The principle itself captures full advantages of high (stationary) population growth rate. In the simplest form, PAYG pension scheme is based on the notion of generational solidarity upon which current generations pay mandatory social security contribution into the public scheme. Aggregate contributions are then paid out to current retirees. The cycle is then expanded through generations. However, PAYG funding scheme is sustainable as long as the population growth is high and above the marginal productivity of the capital. Back in 19th century, public pension schemes were adopted under unrealistic assumptions about future population prospects. In 19th century, advanced countries experienced high population growth rate, high fertility rate and an extremely low share of dependent old population that was receiving universal old-age support from PAYG pension schemes. These set of assumptions was crucial to the stability of government-provided old-age support embodied in the public pension schemes.

The sustainability of PAYG pension system requires the equivalence of population growth rate and real interest rate. In the early 20th century, the advanced world shifted towards aging population, declining fertility rates and lower labor market entry rate. In broad terms, a growing old-age dependency ratio led to the pure disequilbrium effects. In a theoretical framework, I re-examined the neoclassical framework of lifecycle hypotheses embodied in Samuelson and Cass-Yaari models of life-cycle utility maximization. The lifecycle hypothesis is based upon the assumption of the three-period model where individuals maximize the consumption in the course of a lifetime. In the first period, individuals do not discount the future consumption since, in this period, individuals acquire the human capital. In the second period individuals enter the working age and discount the future consumption. Hence, in the third period, individuals retire consume the output produced in the working-age period. Since future discounting is compounded, the lifetime consumption increases geometrically. In purely analytical terms, the individuals maximize the utility of consumption through time preference rate.

Considering the abovementioned equivalence between population growth rate and real interest rate, the stability of the equilibria requires the period discount rate to equal the population growth rate. If population growth rate decreases, the stability of the equilibria requires that individuals decrease the future discount rate by the same rate to keep the PAYG pension system within the theoretical limit. The rigorous theoretical formulation of the neoclassical model of lifetime consumption, which essentially captures the necessary conditions for equilibrium stability of public pension schemes, had been put forth by Paul A. Samuelson in his seminal contribution to the theoretical foundations of stationary "PAYG" public pension scheme .

In the course of the last decades, OECD countries have experienced a significant drop in fertility rates, population growth and, under the political climate of social democracy, a widespread adoption of early retirement schemes and generous social security benefits. In addition, labor market exit age dropped significantly, initiating a trend towards the unprecendent growth of generational indebtedness.

The OECD estimated that between 2000 and 2050, old-age dependency ratio is forecast to increase to the largest extent in Japan (193 percent), Spain (136 percent), Portugal and Greece (135 percent). The astonishing increase in the estimated old-age dependency ratio directly reflects the declining fertility rate in OECD countries from 1960s onwards. I estimated the ratio of fertility rate between 1960-1970 and 2000-2006 for OECD countries at around 2, which means that average fertility rate between 1960-1970 was twice the fertility rate between 2000-2006. The highest fertility ratios were found in Spain (2.23), Italy (1.96), Ireland (2.00) while the lowest ratios were found in Denmark (1.37), Netherlands (1.72) and the United States (1.46).

High and stable effective retirement age is the main assumption underlying the stationary stability of PAYG pension system. In the 20th and 21st century, OECD countries have experienced an unprecendent decline in effective retirement age. Blöndal and Scarpetta (2002) estimated the decline in labor market exit age for OECD countries between 1960 and 1995. The female labor market exit age had declined significantly in Ireland (10.7 years), Spain (9.1 years) and Norway (8.8 years). Male labor market exit age exerted persistent decline in all developed OECD countries except for Iceland. The exit age declined significantly in the Netherlands (7.3 years) and Spain (6.5 years).

In a large part, declining labor market exit age has confluenced the rapid growth of unemployment and disability benefits and early retirement incentives from the second half of the 20th century onwards. As the OECD correctly contemplated, in a number of countries, disability pensions and unemployment benefits can be used as de facto early retirement schemes. In a large part, widespread growth of early retirement schemes and implicit incentives for moral hazard in retiring too early via unemployment and disability schemes is held responsible by generous welfare states in the aftermath of the World War II.

When I examined various features affecting early retirement choices, I came across an interesting finding. I regressed labor market exit age and marginal tax rate in a cross section of 23 OECD countries in 2007. I estimated the relationship between exit age and marginal tax rate using a classical OLS linear regression model. The estimate suggests that, holding all other factors constant, if marginal tax rate increases by 1 percentage point, average labor market exit age decreases by 1.88 months. Surprisingly, 51.74 percent of sample variation is explained by marginal tax rate alone. The sample constant is statistically significant, suggesting that if the hypothetical marginal tax rate were zero, the average labor market exit age in randomly chosen country from OECD sample would be 69.65 years. The sample constant is consistent with a prior theoretical expectations since it concurs with the "substitution effect" hypothesis that higher marginal tax rate leads to lower labor supply and fewer working hours.

The cost of early retirement in OECD countries

Source: T.T. Herbertsson & J.M. Orszag, The Cost of Early Retirement in OECD, 2001. OECD, Pensions at Glance, 2009.

Fiscal imbalances arising from unsustainable PAYG public pension systems in OECD countries cannot be assessed without a sufficient estimate of economic costs of unfunded pension liabilities. I approximated the cost of early retirement using Auerbach-Kotlikoff-Gokhale (1999) methodology that directly estimates the size of generational imbalances created by public social security systems. Large and rapidly unsustainable net pension liabilities occured in late 1980s. Van den Noord and Herd (1993) estimated the size of net pension liabilities in seven major OECD countries. The results suggest that continental European countries have had the largest net pension liabilities in terms of GDP. The size of pension liabilities in France and Italy had been about 2.5 times the size of their respective GDPs and twice the stock of the public debt.

Gokhale (2008) directly estimated fiscal imbalances arising from unfunded pension liabilities to current and prospective generations. The size of generational fiscal imbalance, as a share of the GDP, is extremely large and rapidly unsustainable in all OECD countries. In fact, the size of the imbalance is the most severe in Greece (875 percent of the GDP), France, Finland and the Netherlands (500 percent of the GDP) while it is more than twice the size of the GDP in all OECD countries except for the United States, Canada, Australia and New Zealand.

Fiscal imbalance in OECD countries

Source: J. Gokhale, Measuring Unfunded Obligations of European Countries, 2009.

I built the econometric model of public pension expenditure for a cross section of 23 OECD countries in 2007 to assess which variables might explained the cross-country variation in public pension expenditures. I've been aware of the possible drawbacks of choosing a cross-section model since it might be vulnerable to specification errors and the unbiasedness of regression coefficients. To account for possible specification bias, I conducted Kolmogorov-Smirnov, Shapiro-Wilk and Jarque-Bera normality tests. By performing normality tests, I have examined whether the normality assumption of normally distributed error terms is valid in the studied sample of 23 OECD countries considering error terms as identically and independently distributed.

In the set of explanatory variables that might yield consistent and robust estimates of regression coefficients I chose 10 various demographic, economic and institutional independent variables. Apart from demographic and economic variables, institutional variables are dichotomous since the institutional features can be captured by binary modes of choice. The dependent variable is the size of public pension expenditures in the share of the GDP.

The results suggest that public pension expenditures are positively correlated with the share of population aged 65 and older (0.746**), difference in life expectancy after age 65 between 1960 and 2005 (0.477*) and dichotomous variable for continental European countries (0.697**) where * and ** indicate the statistical significant of the sample correlation coefficient at the 5% and 1% level. The estimates suggests that the probability of higher pension expenditures in the share of the GDP is likely to occur in a continental European country known for a relatively large share of older population and a high difference in life expectancy after age 65 between 1960 and the present. On the other hand, public pension expenditures are negatively correlated with average effective retirement age (-0.475**), private pension funds as a share of GDP (-0.658**), labor market exit age (-0.523**), dichotmous variable for Anglo-Saxon countries (-0.544**) and a dichotomous variable for private pension system (-0.672**), where ** denotes the statistical significant of the sample correlation coefficient at the 1% level. Again, the estimates suggest that the probability of lower pension expenditure is likely to occur if a randomly chosen country from the OECD sample is Anglo-Saxon and has a high effective retirement age, large private pension funds as a share of the GDP, high labor market exit age and a mandatory private pension system. The coefficients suggest that in repeated sampling, the estimated sample correlation coefficient will include the true or correct population value in 99 percent of cases.

I conducted the econometric model which consisted of 8 regression specifications. I chose double-logarithmic model which yields direct elasticities as regression coefficients. However, I added two exceptions. In regression specifications 5 and 6, I chose a mixed specification mostly due to the inclusion of private pension funds (assets) variable in the regression specification. Unfortunately, but the share of private pension funds in Greece in 2007 equals 0 percent of the GDP which does not enable the researcher to apply double-logarithmic model as the basis of regression specification.

The estimates suggest that the share of population aged 65 and older is statistically singificantly positively related to the share of public pension expenditures in the GDP. Hence, the elasticity of public pension expenditures with respect to effective retirement age ranges from -1.465 to -4.935, suggesting that an increase in effective retirement age by an additional year leads to per unit increase in public pension expenditures by more than a unit increase in the share of the GDP. The coefficient of private pension funds is highly statistically significant. The elasticity of public pension expenditures with respect to private pension funds (as a share of the GDP) ranges from -0.34 to -0.38 and is statistically significant at the 1% level. The elasticity suggests that a 10 percentage point increase in the share of private pension funds reduces the share of public pension expenditures in the GDP, on impact, by 3.4-3.8 percent, holding all other factors constant. In addition, the estimates of coefficients for dichotomous variables suggest the following: the probability of higher public pension expenditures (as a share of GDP) is likely to occur in continental European countries with mandatory private pension system. Five estimates of dichotomous coefficients are statistically significant at the less than 10% level.

The significance of dichotomous (dummy) coefficients has been tested by beta coefficient analysis to rank the magnitudes of separate effects of explanatory variables on public pension expenditures as dependent variable. The results suggest that continental European countries are significantly more likely to face higher public pension spending in the share of GDP compared to Anglo-Saxon countries.

Earlier I mentioned the necessity of normality assumption in yielding robust, consistent and unbiased estimates of regression coefficients. The assumption has been questioned by conducting Kolmogorov-Smirnov test (K-S), Jarque-Bera test (J-B) and Shapiro-Wilk (S-W) normality test. The aim of the testing the normality assumption is to observe whether error terms distribute normally so that estimated test statistics, standard errors and confidence intervals are reliable. In setting test statistic, I set the normality assumption as null hypothesis. The results from K-S, J-B and S-W tests show that the null hypothesis cannot be rejected at 5% level, suggesting that the normality assumption is valid in the studied sample. Hence, test statistics, standard errors and confidence intervals are both valid and reliable.

The meaningful question to evaluate the prospects of the coming public pension crisis is how to reverse the growth of fiscal imbalances and reform public pension system as to avoid erratic generational indebtedness. Aging population and the growth of old-age dependency ratio trigger an enormous future burden on public finances in OECD countries. Lower fertility rate and population growth shall place an incurable burden on the stability of PAYG public pension systems. The estimates suggest that life-expectancy after the age of 65 is likely to increase by 2050 and gradually approach the age of 90 for both male and female. Assuming the effective retirement age is 65, the remaining life expectancy is 25 years or almost one-third of the average lifetime. As Alemayehu and Warner (2004) suggest: "Old-age health care costs thus will impose increasingly severe pressure on private finances and government coffers. Indeed, applying our age-specific estimates to the age distribution anticipated for the year 2030, we find that if nothing is done to alter current patterns of health care, per capita health care expenditures will rise by one-fifth due to population aging alone."

The long-term pension reform that aging societies of the West should undertake is a complementary measures of three key policy features of the reform.

First, the transition to fully-funded retirement savings accounts is the only viable and sound pension reform that can alleviate the damage generated by the growing fiscal imbalances. The theoretical foundation of the transition from public pension systems to fully-funded pension system has been laid down by Feldstein and Liebman (2001). The authors derived an algebraic solution which suggests that keeping a PAYG public pension system does not attenuate the persistence of a growing demographic pressure on the stability of public pension system. As I discussed earlier, PAYG system crucially depends on three key assumptions: high fertility rate, very low share of population older 65+ and high population growth. These assumptions are incompatible with actual demographic parameters and, hence, OECD countries should undertake a drastic transition towards fully-funded pension systems based on individual savings accounts. Otherwise, the growing demographic pressure will inevitably result in the exponential growth of generational debt, creating an enormous deadweight loss for current and prospective generations.

Fully-funded pension system is based on the premise of investing pension contributions into the capital market, earning a compound interest over time. The stock of individual's lifetime earnings is paid in the form of annuities upon individual's withdrawal from the labor market. In addition, there is a growing disparity between the implicit return of PAYG public pension system and real rate of return in the capital market. Under realistic assumptions, such as that the marginal product of capital (MPK) is below the welfare-maximizing level and the real rate of return exceeds the implicit return from PAYG system, fully-funded pension system would not create a deadweight consumption loss to the working-age population. In fact, Feldstein and Liebman (2001) derived an analytic solution for the transition to fully-funded pension system in which the transition induces a short-term consumption loss in the next period while, at the same time, it creates a geometrically-growing future consumption for both retired and working-age population.

The only remaining question is whether the real rate of return would compensate the consumption loss of working-age population and, hence, increase the stock of future consumption to all generations. According to Feldstein and Liebman (2001), assuming 6.5 percent inflation-adjusted rate of return, the payroll cost of fully-funded pension system would represent only 27 percent of the payroll cost incured under PAYG public pension system. Tax rate, required to bear the cost of current stock of pension liabilities is 12.4 percent respectively.

According to Congressional Budget Office, the average real rate of return for large-company stocks between 1926 and 2000 is 7.7 percent, 9.0 percent of small-company stocks and 2.2 percent for long-term Treasury bonds. Feldstein (1997) estimated that PAYG implicit rate of return is 2.6 percent.

Assume an individual wants to maximize the lifetime earnings in the capital market. An individual is offered 2.6 percent implicit return from PAYG system. The individual enters the labor market at certain age, say 25, and intends to retire upon the age of 65. Assume he invests $10.000 annually in the capital market to create retirement annuities upon labor market withdrawal. Assuming the implicit rate of return (2.6 percent), the stock of overall annuity would be 10 times the initial investment in 90 years. Assuming the average long-run real rate of return from large-company stocks (7.7 percent), the the overall annuity would be 10 times the initial stock of investment in 31 years. Therefore, the individual would reach the desired level of lifetime earnings at the age of 56 or 9 years before the targeted retirement age.

I assumed the distribution of lifetime investment portfolio is weighted average of availible asset types: large-company stocks (33 percent), small-company stocks (19 percent), long-term corporate bonds (20 percent), long-term Treasury bonds (20 percent) and 3-month Treasury bills (8 percent). According to the average annual real rates of return in the United States (1926-2000), I calculated the weighted average real rate of return (5.247 percent). Investing $10.000 annually at the age of 25 would buy $100.000 annuity at 5.247 real rate of return in 45 years (the age of 70) compared to 90 years (the age of 115) under the PAYG implicit rate of return (2.6 percent). Of course, the time to buy the annuity would shift alongside the changing composition of portfolio.

In addition, OECD countries should immediately increase the effective retirement age. I believe the solution suggested by Gary Becker is both meaningful but sustainable in reversing the growth of generational debt. Becker (2010) suggested "One simple and attractive rule would be to raise retirement age by an amount that makes the ratio of years spent in retirement to years spent working equal to the ratio that existed at the beginning of the social security system."

When President Roosevelt signed the notorious Social Security Act in 1935, the normal retirement age was 65. However, life expectancy after the age of 65 was significantly lower than is today. In 1940, average life expectancy after 65 in the U.S was 13.7 years. In 2006, it stood at 18.6 years, according to OECD. In 1935, the average life expectancy at birth in the United States was 61.7 years. We assume that individuals in 1935 worked for 35 years and spent 12 years in retirement. The ratio is thus 0.4 (12/ 35=0.34). Today, if individuals retire at the age of 65, they can expect further 18.6 years in retirement. To equalize the ratio to the 1935 level, (18.6/x=0.34), individuals should spend 54.7 years working. The estimate time is an equivalent measure of years required to spend working if PAYG public pension system is left intact. Assuming the individuals enter the labor market at the age of 25, then the expected effective retirement age is the age of 80.

In the long run, PAYG public pension system is unsustainable since demographic parameters do not suffice the assumptions under which the PAYG system is possible without distortions of labor supply incentives. The future of OECD countries will be marked by aging population, lower fertility rates and a growing demographic pressure on public finances. Without bold and decisive pension reform, OECD countries will experience increasing pension deficits and, hence, an explosive growth of generational indebtedness.

Parametric pension reforms are not a substitute for the postponement of paradigmatic pension reform. Thus, implementing the transition to fully-funded pension system essentially requires higher effective retirement age. A comprehensive pension reform cannot be made possible without these measures. At last, but not least, the major challenge in the systematic pension reform in OECD countries to address the burden of global aging, is whether political courage will withstand the pressure of interest groups to maintain the status quo of early retirement incentives. Nonetheless, eliminating early retirement incentives is the essential step towards creating retirement system without perverse incentives to retire too early. Unless political leaders encourage a transition to fully-funded pension system, OECD countries will be unable to withstand the deadly consequences of an enormous generational indebtedness.

The economic future of Ireland

The economic and financial crisis of 2008/2009 hit Ireland heavily. The asset price bubble and the subsequent deflation have added to the uncertain macroeconomic outlook. How did the country went from the times of the "Irish miracle" to the prolonged economic slowdown? Following the beginning of the 2008/2009 economic and financial crisis, Ireland was hit by an unprecedent economic slowdown. In 2008, the GDP declined by 3.0 percent on the annual basis. In 2009, the GDP further declined by 7.1 percent in real terms. The unemployment rate increased to almost 12 percent.

Prior to the outburst of the economic crisis, Ireland enjoyed stable and predictable levels of public debt. In 2007, the country was known for having stabilised the public debt at 25 percent of the GDP - the lowest level of any Western European country. In 2009, the debt-to-GDP ratio increased to 64 percent of the GDP. Once known as the sick man of Europe, Ireland's economic policymakers have implemented a set of fiscal policy measures aimed to boost the long-term economic growth and abolish the economic policy based on the state intervention, high tax rates on labor and capital and export-led growth.

Eversince the 1960, Ireland pursued a soft version of industrial policy targeted at the promotion of inward foreign direct investment and the education of highly skilled workers. In addition, Ireland reduced the corporate income tax rate to 12.5 percent and provided a thorough technical assistance and to multinational companies located in Ireland. Indeed, U.S. multinationals such as Microsoft, Dell and Intel were encouraged to locate in Ireland mainly because of its geographic proximity to key European markets, skilled English-speaking workforce, membership in the EU, relative low wage level and favorable corporate taxation.

In early 1990s, the results of a precise set of economic policies were spectacular. By the end of 2006, the unemployment rate dropped to 4.6 percent from 18 percent in early 1980s. Between 1992 and 2005, Irish GDP increased by an average of 6.9 percent while the investment grew by 8.6 percent on the annual basis. The largest contribution to GDP growth was domestic demand (5.3 percentage point). Hence, Ireland's public finance enjoyed a favorable outlook mainly due to the rapid decline of debt-to-GDP ratio from 1980s onwards, and from a relatively low demographic pressure on the budgetary entitlements.

During the Irish boom, Irish banking and financial sector were highly dependant on the wholesale funding. Due to largely positive macroeconomic outlook from 1990 onwards, Irish banking sector received high and consistent credit ratings from agencies such as Moody, S&P and Fitch. In turn, the reliance on fragile wholesale funding resulted in overleveraged balance sheets. After the failure of Lehman Brothers in September 2008, the short-term outlook on Irish banking sector signalled a significant rise in credit-default swaps which raised concerns over the ability of banks to provide the wholesale funding for a mountain of short-term debt liabilities. And since the overleveraged balance sheets downgraded the outlook on Irish banking sector, the institutional investors demanded higher risk premium to extend the funding channel to the Irish banks.

The Directorate Generale for Economic and Financial Affairs of the European Commission downgraded the macroeconomic forecast of Irish GDP growth. By the end of 2009, the economic activity plummeted by 7.1 percent. The housing market crash was largely a result of the asset price bubble channeled through the overinvestment in the construction sector which represented 12 percent of the GDP. Nothing could explain the deflationary pressures in the aftermath of the financial crisis than excessive housing prices during the pre-crisis Irish economic boom. After 2008, Ireland's household savings rate increased to the level above 10 percent which is a result of the adjustment in the household balance sheet. In fact, between 2001 and 2007, the share of household debt in the GDP nearly doubled.

Meanwhile, the mountain of liabilities in the Irish banking and financial sector raised the concern over its solvency. The Irish Government immediately facilitated a bailout plan for the troubled banking sector. Consequently, the large budget deficit resulted in excessive debt-to-GDP ratio which grew by 39 percentage points between 2007 and 2009. In the annual European Economic Forecast (Spring, 2010), the European Commission estimated that by the end of 2011, the debt-to-GDP ratio could reach as high as 87.3 percent. while the cyclically-adjusted government balance is estimated to increase up to -10.2 percent of the GDP. The contraction of domestic demand which, by all measures, is the main engine of Ireland's economic growth led to a rapid increase in the unemployment rate which increase from 6.3 percent in 2008 to 11.9 percent in 2009. By 2011, the European Commission forecast that the unemployment rate is expected to further increase by 1.5 percentage point compared to 2009. In World Economic Outlook, the IMF estimated that the unemployment rate in Ireland would increase by 1.1 percentage point by the end of 2011. In 2009, Ireland experienced net outward migration for the first time since 1960s in the wake of expected 13.8 percent unemployment rate in 2010.

The macroeconomic forecast for 2011 is favorable. The European Commission upgraded GDP growth estimate to 3 percent. Meanwhile, the investment is expected to increase for the first time since the 60 percent cumulative decline of the construction sector. The positive contribution of net exports to the gradual narrowing of the current account deficit could be an important measure to alleviate the rising pressure over debt-to-GDP ratio. On the other hand, Ireland's Department of Finance revised the macroeconomic forecasts and estimated that by the end of this year, the GDP would grow by 1 percent on the annual basis.

The essential measure of Irish economic recovery is the retrenchment of wage rates in the public sector and the adjustment of public sector wages to the cyclical dynamics of economic activity to prevent the possibility of excessive inflationary pressures in the course of economic recovery. Current measures of retrenching public sector wages successfully anchored the inflationary expectations. According to the IMF, the annual inflation rate is estimated to peak at nearly 2 percent by the end of 2015. The falling wage rates in the private sector could induce the reallocation of resources in the tradeable sector, further adding to the contribution of net external trade to the GDP growth.

The key measures to alleviate the consequences of economic and financial crisis in both real and financial sector are the immediate narrowing of Ireland's excessive budget deficit and public debt in the share of GDP. High public debt is mainly the result of government capital injection into Anglo-Irish Bank which represents about 2 percentage points of net deficit increase in 2010. The entire consolidation package represents 2.5 percent of the GDP.

Deutsche Bank recently published Public Debt in 2020 and estimated the levels of public debt by the end of that year for both advanced and emerging-market economies. The analysis by Deutsche Bank predicted the effect of a combined negative shock in real interest rate, primary government balance and real GDP growth. If the combined shock of all three variables were to change by about one-fourth standard deviation from the estimated growth rate, the public debt in 2020 would reach 154 percent of the GDP. If the combined shock of all three variables increased by one-half standard deviation from the baseline estimates, the public debt in 2020 would increase to 197 percent of the GDP. The difference in the estimated increase is due to higher intensity of the combined shock. In addition, to restore the debt-to-GDP ratio to pre-crisis level, Ireland would be required to increase the primary government balance to 6 percent of the GDP.

Given the enormous magnitude and burden of public debt and overleveraged corporate and financial sector, the immediate facilitation of measures to alleviate the public indebtedness is necessary. Ireland's economic future is constrained by the persistence of budget deficit which adds to the future burden of public debt. Prudent efforts to reduce the burden of both debt and deficit are of the essential importance. Nevertheless, Irish policymakers should not neglect the economic policies that created the Irish miracle as well as the policy errors that caused the deepest economic decline in Western Europe during the 2008/2009 economic crisis.

THE 2015 SOVEREIGN DEBT FORECAST

Source: The Economist, Sovereign Debt: Wiggle Room, September 2, 2010 (link)

THE EMPIRICAL EVIDENCE ON WAGNER'S LAW

Ever since the original proposition by a 19th century German economist Adolph Wagner, Wagner's law has undergone significant theoretical and empirical discussion on its long-run validity. In the most basic and rudimentary version, the law states that alongside the economic development of industrial societies, there is a persistent tendency of an increasing share of government spending in the GDP. Since the beginning of the 20th century course, the growth in government expenditures has escalated in all major industrial countries. The economic literature has centered the discussion on two elementary versions of Wagner's law. The first version of Wagner's law attributes the growing share of government spending to the ever expanding power of interest groups.

The concept of interest groups has been thoroughly developed by a rigorous theoretical analysis by Mancur Olson's The Logic of Collective Action. There is a remarkably positive correlation between the growth of government spending and the political power of interest groups. Back in 1954, Milton Friedman and Simon Kuznets have analyzed the income dynamics in independent professions (link). Although there has not been much discussion in the economic literature, the Friedman-Kuznets analysis is an important milestone in the explanation of the evolution of interest groups. Friedman and Kuznets examined five independent professions. Using a comprehensive statistical analysis, they showed how income growth in five profession has exerted an upward trend without significant gains in productivity. The five independent professions analyzed by Friedman and Kuznets emerged as pure interest groups. These groups have imposed a regulated labor market structure marred by occupational licencing and aimed at gaining an insider's earnings rent at the expense of entry restriction. Occupational licensing is one of the most powerful explanatory features of low coefficient of price and income elasticity of labor supply of physicians, dentists, legal consultants and medical practitioners. In most of the industrial countries, these groups have emerged as powerful interest groups and triggered an unbreakable increase on the growth of government spending. The evolution of interest groups in fields such as agriculture, social security and trade has resulted in the intensive pressure on the growth of government spending. The interest group perspective on Wagner's law emphasizes the state capture created by the democratic system and an irreversible pattern of increases in government spending centered on small and powerful interest groups. If interest group's representative utility function can be described as a relationship between the group's size and its price elasticity of labor supply: U(f,e)=f(1-|e|), then the effect of a unit change in price elasticity of labor supply dU/de=-f indicates that greater price elasticity of labor supply will reduce the size (f) of the interest group as a result of pure substitution effect at work. On the other hand, if price elasticity of labor supply of the particular interest group will decrease, causing more price inelastic labor supply, the size of the interest group will increase since most of the excess wage increases will spill into physician's pocket.

The second version of Wagner's law states that an increase in government spending in time is a result of a high income elasticity of demand for public goods. Rati Ram (1986) has tested this hypothesis on the sample of 115 countries between 1950 and 1980. His conclusions suggest that income elasticity of demand for public goods is very elastice (exceeding 1) in 60 percent of all countries in the sample. A comprehensive development of econometric methodology has enabled a more rigorous and empirical evaluation of Wagner's law on the basis of long-run simulation using time-series data. For example Sidelis (2006) has applied cointegration analysis and Granger casuality tests to determine whether long-run changes in income account for the growth of government spending in Greece between 1833 and 1938 (link). The author concludes that income elastic demand for public goods caused a growth in government expenditures. A recent study by Lamartina and Zaghini (2008) indicates (link) a negative relationship between government spending and economic growth in a sample of 23 OECD countries. The study further suggests that the correlation between income growth and government expenditure is stronger in countries with low initial levels of GDP per capita. Neck and Getzner (2007) collected data on government expenditure in Austria between 1870 and 2002 and examined whether the surge of government expenditure is attributed to either Wagner's law or Baumol's cost disease. The authors applied Phillipe-Perron and Augmented Dickey-Fuller stationarity tests, concluding that government spending time series more likely represents a stationary time series. In concluding remarks, the authors note that much of the increase in government expenditure is a problem of increasing prices in public sector, relating the growth in public expenditures to Baumol's cost disease where output reduction in public sector is a result of net decrease in productivity growth which yields a significant pressure from public sector interest groups on expenditure increases.

Wagner's law is an intriguing theoretical and empirical issue. In spite of the numerous empirical evaluation and theoretical design, the issue will probably remain an intensive course of the academic debate.

TAX WEDGE AND PRODUCTIVITY IN OECD COUNTRIES

The OECD Factblog highlighted a comparison of tax burden across the OECD countries. The main findings of the comparison is that overall tax burden, measured as a percentage of labor costs, is the highest in Western European countries. Belgium, Hungary, Germany and France are the countries with the highest overall tax burden while Ireland, Iceland, Australia and Korea have sustained low tax wedge. The data acquired by the OECD pose an intriguing question: is slow economic growth in European countries attributed to high tax burden of labor supply and, if so, has the gap between the U.S. and Europe grown further?

Let's decompose the data and underline the main findings. Tax wedge, measured as a percentage of taxes and transfers paid in the share of total labor costs, is a suficient measure of the overall level of taxation. In the analysis of the effect of taxation on labor supply, the economic theory distinguishes between substitution and income effect. The former means that tax rate on labor supply would reduce the number of working hours and shift the individuals to allocate more time into leisure. The income effect, on the other hand, states that the effect of tax on labor supply would be neutral and would, hence, not have an effect on the relative allocation of resources between working hours and leisure. In general, there are two largely opposing views in economic policy regarding the relationship between taxation and labor supply. Conservative and liberal economists tend to emphasize the role of incentives. Higher tax rate would raise the labor cost and the corresponding decline in wages would be offset by the re-allocation of resources into leisure sector of the economy. Left-wing economists mostly disagree with the abovementioned proposition. Instead, they emphasize the role of elasticity of labor supply. According to New Keynesian view, short-run tax elasticity of labor supply is low in absolute terms, meaning that the amount of working hours does not respond significantly to relative changes in tax rates. The Keynesian economists thus emphasize the significance of income effect while the conservative and liberal economists tend to emphasize the substitution effect. The distinctions and policy effects of these two theoretical propositions remains a controversial issue of economic policy debate.

The country distribution data is extensively underlined in the data (link). For example, one-earner married couple at 100 percent of earnings distribution is taxed at 20 percent of the overall labor cost in the United States, 22 percent in Australia, 18 percent in Switzerland and 13 percent in New Zealand. On the other tax wedge statistics for Western Europe is a completely different picture. In Sweden, one-earner married couple at 100 percent of earnings distribution will earn only 57 percent of net earnings, indicating a 43 percent effective tax rate on labor supply. In Belgium, the effective tax rate on labor supply is 42.6 percent. Is the difference in effective tax rates statistically significant feature of productivity variation across OECD countries. The OECD recently composed a breakdown in key productivity statistics in developed countries (link). To estimate the relationship between productivity and tax burden, I collected data on multifactor productivity dynamics from Groningen Growth and Development Center (link) and data on tax wedge across OECD countries (link). I estimated the noted relationship for 16 developed OECD countries. Multifactor productivity is a dependent variable while tax wedge is an explanatory variable.The estimates are displayed on the graph below.

Multifactor productivity in OECD relative to the U.S. and total tax burden (% of labor cost)

Source: GGDC, OECD Factblog

The horizontal line on the graphs marks the U.S. level of multifactor productivity. As the graph shows, the underlying relationship between multifactor productivity (MFP)and tax wedge is fitted with quadratic equation. Total tax wedge explains about 34.5 percent of the variation in multifactor productivity index across OECD countries. The trend exerts a decreasing MFP as the tax wedge rises and, after reaching a local minimum, a slight increase alongside the proporional rise in tax wedge. The relevant question is at which rate of tax wedge the MFP reaches the minimum. Setting the first-order derivate to zero (dy/dx=0) yields 0.0016x-0.0488=0. Rearranging the equation yields x=30.5. The first-order derivative implies that MFP reaches the minimum at 30.5 percent tax wedge. The estimate sample-based tax elasticity of productivity ((dy/dx)(x/y)) is 1.78. The elasticity indicates that 1 percentage point increase in tax wedge would reduce the multifactor productivity in a sample country by 1.78 percent, ceteris paribus. In other words, the estimated slope coefficient suggests that a 1 percentage point increase in tax wedge would widen the MFP gap between the average country and the US by additional 0.05 index points.

In economic terms, MFP would decrease as long as the countries in the sample would exert less than 30.5 percent tax wedge. In the horizon after the local minimum (30.5 percent), MFP would initially increase but at a smaller rate than before the function would reaches the minimum point. At 20 percent tax wedge (close to Japanese level), the expected decrease in MFP would be 0.0168 index point. At 40 percent tax wedge, the expected increase in MFP would be 0.0152 index point. Economically, the relationship between MFP and tax wedge should not be interpreted as a mixed effect of tax wedge on MFP. In countries, where tax wedge exceeds 30.5 percent (Austria, Denmark, Sweden, Belgium etc.) , the multifactor productivity is close to the U.S. level. The only country with higher MFP level than the United States is Luxembourg. In these countries, the average number of annual hours worked per worker is lower than in the U.S. Hence, hourly productivity output is higher. The following graph illustrates the relationship between annual hours worked (per worker) and MFP level.

Average annual hours worked per worker and multifactor productivity relative to the US

Source: OECD Statistics (2010)

As the graph illustrates, there is a negative relationship between average annual hours worked and MFP. The estimated regression coefficient suggests that an increase in annual hours worked by 100 hours would reduce MFP level (compared to the U.S) by 0.06 index points. As expected, the implied elasticity of productivity is negative. Taking the average values ov both variables, an increase in average annual hours worked (per worker) by 1 percent would reduce the MFP relative to the U.S level by 1.16 percent, ceteris paribus.

The conclusion is that there is a significant and negative impact of tax wedge on multifactor productivity. Taking the differences in annual hours worked into account, tax wedge alone explains almost 35 percent of the differential in multifactor productivity across the OECD. The findings suggest that there is a relatively strong substitution effect in labor supply. The finding is underlined by the fact that higher tax wedge would correspondingly reduce annual hours worked. However, the interpretation should be taken with a grain of warning. As previous empirical studies have shown, there is a widespread disparity in the distribution of working hours in formal and household sector of the economy. A sizeable proportion of working hours in household sector of the economy is not officially measured. Consequently, a blick of distortion of the real relationship between labor supply and tax wedge, in its broadest sense, is a major impediment to the measurement of labor supply dynamics. These estimates will, in a large part, determine the future research of the effect of taxation on labor productivity.

WELFARE STATE AND THE FUTURE OF EUROZONE

The $140 billion rescue package to Greece is a milestone in the European Monetary Union. A lively debate on recent macroeconomic imbalances in the weakest economies of the Euroarea - Greece, Italy, Spain and Portugal - in the Eurozone has reopened the old debate on whether the Eurozone is an optimum currency areas (here, here, here and here). The idea of optimum currency areas was first proposed by Nobel-winning economist Robert Mundell. In general, if several countries form a currency union, they should have at least four common macroeconomic features as essential framework of the currency union. In this article, I'll review the labor market criteria and fiscal adjustment criteria in the light of a recent imbalances in the Euroarea, and leave production diversification and export criteria for future discussion.

First, there should be a high degree of labor mobility between countries in the currency union. The basic idea behind the labor mobility criteria is that the lack of labor mobility triggers divergence of productivity growth rates and asymmetric adjustment of wages. If inter-country productivity divergence persists, there is an upward pressure on wages adjustment given the lack of exchange rate adjustment since the countries share a common monetary policy. The formation of the currency union in the United States was relatively straightforward given the fact that labor mobility between the states is very high. In Europe, the level of labor mobility is relatively low. The lack of labor mobility has a lot to do with labor market institutions in European countries. Workers from the European periphery can hardly move to Germany, Netherlands or Denmark as they do not speak the same language. The lack of inter-country mobility resulted in significant wage premiums and rise in rents since European labor markets share a pretty high degree of monopoly power since European workers can't switch easily between labor market structure. The resulting outcome of the lack of labor market competition was a significant "union capture" of the labor market, leading to rigid wage determination and high market switching costs.

Paul Krugman recently argued (link) that the major problem behind the European Monetary Union is the lack of common fiscal policy. To a very large extent, the absence of common fiscal policy seriously affects the future prospects of the European Monetary Union. Common fiscal policy could easily absorb asymmetric shocks withing the Euroarea. However, instituting the policy could not alter the trade-off between fiscal autonomy and asymmetric shock intensity. In other words, the main problem of the Euroarea right now is the free-riding of Eurozone's most problematic countries on a common monetary policy using disrectionary fiscal policy. Before the economic crisis, Spain had a budget deficit while, at the moment, the 2010 budget deficit forecast is more than 8 percent of the GDP. The estimate Greece's balooning public debt in 2009 ranges from 110 to 115 percent, depending on the consensus forecast. If the EMU countries unified a fiscal policy, the countries would not have an incentive to free-ride on discretionary fiscal policy and further increase the stock of public debt. The major impediment on the recovery and long-term economic outlook of Eurozone countries is largely dependent on how these countries will reform the pension systems in the light of a growing old-age dependence and a near fiscal insolvency of the pay-as-you-go (PAYG) pension schemes. It will be impossible to reverse the aging population and its persistent pressure on an increasing public debt. The integration of fiscal policy would require a sizeable harmonization of taxes given high costs of coordination and sufficient incentives for moral hazard. Without the reversion of long-term public debt pressure from aging, discretionary spending and entitlements, countries such as Greece, Spain and Portugal would leave the Eurozone.

EMU: RECOVERY OR DECLINE?

NY Times recently reported on the agreed financial rescue assitance to Grecce from EMU (€110 billion) and IMF ($145 billion). Alongside Ireland and Mediterranean countries, the economic recovery of EMU is hampered by a high mountain of public debt and unfavorable macroeconomic data on growth, employment and current account.

Public debt in the European Union in 2009

Source: Eurostat (2009)

The graph I attached, shows the level of public debt in EU countries in 2009. Solid horizontal blue line shows the 60 percent debt-to-GDP ratio required by Maastricht criteria for each EMU entrant.

The underlying data (link) on economic recovery in the US point out a strong and robust recovery. The data from Bureau of Economic Analysis show that the US economy grew by 3.2 percent in Q1:2010 continued from a remarkable 4.6 percent growth in Q4:2009. While private consumption expenditure growth increased by 2 percentage points from the previous quarter, private domestic investment rebounded by 14.8 percent in Q1:2010 after a remarkable 46.1 percent increase in Q4:2009. In addition, labor productivity in Q4:2009 increased by 6.9 percent - the largest quarterly increase since Q3:2003 (link) On the other side, recent revision (link) of quarterly growth rate in the EMU has shown that quarterly GDP in Q1:2010 increased by 0.0 percent, revised from 0.1 percent. Industrial confidence, an important measure of manufacturing outlook, further decline by 12.2 index points.

The macroeconomic outlook for the EMU is downsized by high public debt and negative budget deficit which led 10-year bond premium spread between EMU economies and Germany (link). The premium spread between Greece and Germany stood at 8.57 percentage points on April 28 while the spread between Ireland and Germany was at 2.54 percentage points.

High level of fiscal deficits restrains the economic recovery of the EMU countries. In 2009, Spain, Ireland and Greece faced the highest deficit-to-GDP ratio while Denmark's 2 percent deficit-to-GDP ratio was the lowest in the European Union. NY Times recently collected annual dataset on public debt and budget deficit (link) in which an overview of key public finance indicators is availible.

The prospects of economic recovery in the EMU are further downgraded by unfavorable growth forecast. One of the key questions during the ongoing debt crisis has been whether the EMU will sustain fiscal discrepancy within the EMU since asymmetric fiscal policy undermine the ability of the common monetary policy. Even though Greece's debt crisis is the core of the debate regarding future viability of the single currency, growth estimates for Spain and Italy in 2010/2011 will determine the mid-term macroeconomic stability of the eurozone. European Commission recently updated the quarterly economic growth estimates for eurozone countries (link). Depending on the absorption of financial market spillovers into investment and net exports, economic growth estimates for Italy and Spain are quite pessimistic. After an estimated 0.1 percent growth rate in Q2, Spain's economy is likely to contract in Q3 by -0.2 percent and experience a slight rebound in Q4:2010. Quarterly economic forecast for Italy is positive throughout the year although the economic growth rate is likely to be close to zero. However, Italy's economic growth rate is likely to keep the increasing pace towards the end of the year although current macroeconomic outlook deters consumption, investment and inventories' contribution to GDP growth mainly because of high unemployment rate and sluggish productivity growth.

Robust economic growth is essential to the cure of high public debt. Since EMU countries have adopted a single currency, policymakers cannot trigger exchange-rate adjustment through currency depreciation. The latter would spill into higher inflation and modestly reduce the volume of public debt. Due to high unemployment and slower recovery of inventories, inflation rate is unlikely to rebound to pre-crisis levels.

EMU's most problematic countries' recovery is unlikely to be robust given public debt and deficit constraint on quarterly growth outlook. Without a prudent fiscal tightening, lower government spending, there will be a bleak economic outlook for the future of EMU countries which could result in a decade-long period of low growth, high unemployment and Japan-styled deflationary persistence.