1. On Sunday, August 19, the Detroit Tigers and the New York Yankees played baseball at Yankee
Stadium. Both teams were in pursuit of league championships. Tickets to the game were sold out, and
many more fans would have attended if additional tickets had been available. On that same day, the
Cleveland Indians and the Tampa Bay Rays played leach other and sold tickets to only 22,500 people
in Tampa. The Rays stadium, Tropicana Field, holds 43,772. Yankee Stadium holds 57,478. Assume
for simplicity that tickets to all regular-season games are priced at $40.
(a) Draw supply and demand curves for the tickets to each of the two games. (Hint: Supply is fixed.
It does not change with price.) Draw one graph for each game.
(b) Is there a pricing policy that would have filled the ballpark for the Tampa game? If the Rays
adopted such a strategy, would it bring in more or less revenue? Explain.
(c) The price system was not allowed to work to ration the New York tickets when they were initially
sold to public. How do you know? How do you suppose the tickets were rationed?
2. True/False: State whether you think the following statements are True or False, and explain why the
statements are True or False.
(a) the price of a good rises, causing the demand for another good to fall. Therefore, the two goods
(b) During 2009, incomes fell sharply for many Americans. This change would likely lead to a decrease
in the prices of both normal and inferior goods.
(c) Two normal goods can not be substitutes for each other.
(d) If demand increases and supply increases at the same time, price will clearly rise.
3. The City of Oklahoma City is debating implementing one of two possible solutions for the rising illegal
drug problem. The stated objective the optimal policy is to decrease the amount of money that buyers
spend on the drugs (i.e. to decrease the Total Expenditures on illegal drugs)1. Evaluate the two
(a) War on Drugs: The War on Drugs campaign attacks the market by reducing the supply of drugs
on the streets. Using a supply/demand diagram, illustrate and explain the impact that this policy
would have on equilibrium price and quantity.
(b) Just Say No: The Just Say No campaign educates people on the effects of drugs. Using a sup-
ply/demand diagram, illustrate and explain the impact that this policy would have on equilibrium
price and quantity.
(c) Which campaign achieves the goal of reducing the amount that buyer spend on illegal drugs.
Support your answer with evidence from parts (a) and (b).
1Recall that Total Expenditure = Total Revenue = P _ Q
4. Suppose the demand curve for eggs in the United States are given by the following equations:
Qd = 100 – 20P
Qs = 10 + 40P.
where Qd = millions of dozens of eggs Americans would like to buy each year; Qs = millions of dozens
of eggs U.S. farms would like to sell each year; and P = price per dozen eggs.
(a) Find the equilibrium price and quantity in the market for eggs. You must show your work to
(b) What is happening in the market for eggs if P = $2? Is there a surplus or shortage? If so, how
large, and what will happen to price? Show your work.
(c) Suppose that researchers determine that consuming three eggs a day reduces the risk of cancer,
and as a result the demand for eggs increases to Q2d = 130 – 20P. What happens to equilibrium
price and quantity in the egg market? Show your work.
(d) Starting from initially equilibrium. Suppose that the price of chicken feed increases reducing the
supply of eggs to Q2s
= –10 + 40P, and at the same time the demand for eggs decreases to
Qd = 50 –20P. What happens to equilibrium price and quantity in the egg market? Show your
(e) Starting from initial equilibrium, what happens in the market for eggs if the government levies
an excise tax of $0.25 on each dozen eggs. Show your work.
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