Question 4 The demand for pancakes is given by Qd = 40 – 5P and the supply is given by Qs = 10P – 20, where P = price What is the equilibrium price and equilibrium quantity?

Principles of Microeconomics (MindTap Course List)
8th Edition
ISBN:9781305971493
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter4: The Market Forces Of Supply And Demand
Section: Chapter Questions
Problem 6CQQ
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Question 4

  1. The demand for pancakes is given by Qd = 40 – 5P and the supply is given by Qs = 10P – 20, where P = price What is the equilibrium price and equilibrium quantity?

 

  1. The price for iPhones in Barbados has increased significantly. Demand for the cellular device has also increased. This is contrary to the law of demand. Do you agree or disagree? Explain your answer.

 

  1. Identify the flaw in this analysis: “If more Jamaicans become vegetarians, the demand for beef will fall. The decrease in the demand for beef will cause the price of beef to fall. The lower price, however, will then increase the demand. In the new equilibrium, Jamaicans might end up consuming more beef than they did initially.”

 

Question 5

  1. The total utility schedule of Sharon is given below for the number of shoes she consumes.
  2. Calculate Sharon’s marginal utility schedule.
  3. Plot a graph of total and marginal utility.
  4. What is the maximum number of shoes that Sharon will consume? Explain

Number of Shoes

Total Utility

Marginal Utility

1

100

 

2

200

 

3

275

 

4

325

 

5

350

 

6

360

 

7

360

 

8

355

 

 

Assume that Mania has $1,200 per month to spend between dinners at a Japanese restaurant and evenings at Cru, a local bar. Assume that going to Cru costs $25 and eating at the restaurant costs $14.

  1. Draw Mania’s budget constraint with restaurants on the horizontal axis.
  2. Suppose Mania comes into some money and can now spend an extra $200 per month.

Draw her new budget constraint.

  1. Suppose the price of restaurants decrease to $12, while her income and the price of Cru is unchanged. Illustrate what happens to her budget line.
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