(Calculating Price Elasticity of Demand ) Suppose that 50 units of a good are demanded at a price of Si per unit. A reduction in price to $0.20 results in an increase in quantity demanded to 70 units. Using the midpoint formula, show that these data yield a price elasticity of 0.25. By what percentage would a 10 percent rise in the price reduce the quantity demanded, assuming price elasticity remains constant along the demand curve?

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Answer 1

Textbook Question

Chapter 5, Problem 1P

(Calculating Price Elasticity of Demand) Suppose that 50 units of a good are demanded at a price of Si per unit. A reduction in price to $0.20 results in an increase in quantity demanded to 70 units. Using the midpoint formula, show that these data yield a price elasticity of 0.25. By what percentage would a 10 percent rise in the price reduce the quantity demanded, assuming price elasticity remains constant along the demand curve?

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

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a) Assume there are two firms, 1 and 2, competing as Cournot duopolists in a market, selling a homogeneous product. Demand is given by p = 36 – (q1 + q2), where p is price and q1 and q2 are the outputs of firms 1 and 2 respectively. Each firm faces a marginal cost of 6 per unit of output and no fixed cost. Find each firm’s optimal output, the price at which they sell, each firm’s profit , and consumer surplus. b) Now assume that the firms face the same costs, but horizontally differentiate their product, so that firm 1 faces demand p1 = 36 – (q1 + q2/2) and firm 2 faces demand p2 = 36 – (q1/2 + q2). Assume Cournot competition. Calculate the new equilibrium prices and outputs for each firm, consumer surplus and profits. c) Now assume that rather than facing a given degree of product differentiation, the firms can choosehowdifferentiatedtheirproductsare.Thisisequivalenttoinversedemandequationsp1 =36 –(q1 +θq2)andp2 =36–(θq1 +q2),0≤θ≤1,withθdeterminedbythefirms’choicesofproduct…

Assume there are two firms, 1 and 2, competing as Cournot duopolists in a market, selling a homogeneous product. Demand is given by p = 36 – (q1 + q2), where p is price and q1 and q2 are the outputs of firms 1 and 2 respectively. Each firm faces a marginal cost of 6 per unit of output and no fixed cost. Find each firm’s optimal output, the price at which they sell, each firm’s profit , and consumer surplus.

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Answer 2

Textbook Question

Chapter 5, Problem 1P

(Calculating Price Elasticity of Demand) Suppose that 50 units of a good are demanded at a price of Si per unit. A reduction in price to $0.20 results in an increase in quantity demanded to 70 units. Using the midpoint formula, show that these data yield a price elasticity of 0.25. By what percentage would a 10 percent rise in the price reduce the quantity demanded, assuming price elasticity remains constant along the demand curve?

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 5, Problem 1P

(Calculating Price Elasticity of Demand) Suppose that 50 units of a good are demanded at a price of Si per unit. A reduction in price to $0.20 results in an increase in quantity demanded to 70 units. Using the midpoint formula, show that these data yield a price elasticity of 0.25. By what percentage would a 10 percent rise in the price reduce the quantity demanded, assuming price elasticity remains constant along the demand curve?

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 5, Problem 1P

(Calculating Price Elasticity of Demand) Suppose that 50 units of a good are demanded at a price of Si per unit. A reduction in price to $0.20 results in an increase in quantity demanded to 70 units. Using the midpoint formula, show that these data yield a price elasticity of 0.25. By what percentage would a 10 percent rise in the price reduce the quantity demanded, assuming price elasticity remains constant along the demand curve?

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

Answer 8

Expert Solution & Answer

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

The price elasticity of demand by using a midpoint formula.

ConceptIntroduction:

Price Elasticity of Demand: It is the degree of responsiveness to change in quantity demanded due to change in price level.

Midpoint formula for measuring the elasticity of demand is given as follows:

$e = \frac{Δ Q}{Δ P} \times [\frac{\frac{P_{1} + P_{2}}{2}}{\frac{Q_{1} + Q_{2}}{2}}]$

Where,

$Δ Q = Q_{2} - Q_{1}$

$Δ P = P_{2} - P_{1}$

Answer 12

Explanation of Solution

We have presented the information in following table:

Price (in $)	Quantity (in units)
$1	50
$0.20	70

By applying the mid-point formula, we get

$e = \frac{20}{0.80} \times [\frac{\frac{1 + 0.20}{2}}{\frac{50 + 70}{2}}]$

On solving the above, we get,

e=0.25

Hence, elasticity of demand using midpoint formula is 0.25

Now, if the elasticity of demand remains constant along the demand curve, then a 10% rise in the price will reduce the quantity demanded. We can calculate the amount of reduction in quantity demanded in following way.

$e= [\frac{% change in quantity demanded}{% change in price}]$

$0 .25= [\frac{% change in quantity demanded}{10%}]$

So, the quantity demanded will decrease by 2.5%

Answer 13

Ch. 5 - (Calculating Price Elasticity of Demand) Suppose...Ch. 5 - (Price Elasticity and Total Revenue) Fill in the...Ch. 5 - (Categories of Price Elasticity of Demand) For...Ch. 5 - Prob. 4P Ch. 5 - (Determinants of Price Elasticity) Would the price...Ch. 5 - (Price Elasticity of Supply) Calculate the price...Ch. 5 - (Cross-Price Elasticity) Rank the following in...Ch. 5 - Prob. 8P Ch. 5 - (Other Elasticity Measures) Complete each of the...

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