1. Over the past 30 years, technological advances
have reduced the cost of computer chips. How do you think this has affected the
market for computers? For computer software? For typewriters?
2. Using supply-and-demand diagrams, show the effect
of the following events on the market for sweatshirts.
a.
A hurricane in South Carolina damages the cotton
crop.
b.
The price of leather jacket falls.
c.
All colleges require morning exercise in
appropriate attire.
d.
New knitting machines are invented.
3. The market for pizza has the following demand and
supply schedules:
Price |
Quantity Demanded |
Quantity Supplied |
$4 |
135 pizzas |
26 pizzas |
5 |
104 |
53 |
6 |
81 |
81 |
7 |
68 |
98 |
8 |
53 |
110 |
9 |
39 |
121 |
a.
Graph the demand and supply curves. What is the
equilibrium price and quantity in this market?
b.
If the actual price in the market were
above the equilibrium price, what
would drive the market toward equilibrium?
c.
If the actual price in this market were
below the equilibrium price, what
would drive the market toward the equilibrium?
4. Because bagels and cream cheese are often eaten
together, they are complements.
a.
We observe that both the equilibrium price of
cream cheese and the equilibrium quantity of bagels have risen. What could be
responsible for this pattern- a fall in the price of flour or a fall in the
price of milk? Illustrate and explain your answer.
b.
Suppose instead that the equilibrium price of
cream cheese has risen but the equilibrium quantity of bagel has fallen. What
could be responsible for this pattern- a rise in the price of flour or a rise in
the price of milk? Illustrate and explain your answer.
5. Suppose that the price of basketball tickets at
your college is determined by market forces. Currently, the demand and supply
schedules are as follows:
Price |
Quantity Demanded |
Quantity Supplied |
$4 |
10,000 tickets |
8,000 tickets |
8 |
8,000 |
8,000 |
12 |
6,000 |
8,000 |
16 |
4,000 |
8,000 |
20 |
2,000 |
8,000 |
a.
Draw the demand and supply curves. What is
unusual about this supply curve? Why might this be true?
b.
What are the equilibrium price and quantity of
tickets?
c.
Your college plans to increase total enrollment
next year by 5,000 students. The additional students will have the following
demand schedule:
Price |
Quantity demanded |
$4 |
4,000 tickets |
8 |
3,000 |
12 |
2,000 |
16 |
1,000 |
20 |
0 |
Now
add the old demand schedule and the demand schedule for the new students to
calculate the new demand schedule for the entire college. What will be the new
equilibrium price and quantity?
6. The government has decided the
free-market price of cheese is too low.
a.
Suppose the government imposes a binding price
floor in the cheese market. Draw a supply-and-demand diagram to show the effect
of this policy on the price of cheese and quantity of cheese sold. Is there a
shortage or a surplus of cheese?
b.
Producers of cheese complain that the price floor
has reduced their total revenue. Is this possible? Explain.
c.
In response to the cheese producers’ complaints,
the government agrees to purchase all the surplus cheese at the price floor.
Compared to the basic price floor, who benefits from this new policy? Who loses?
7. A recent study found that the demand and supply
for Frisbees are as follows:
Price per Frisbee |
Quantity Demanded |
Quantity Supplied |
$11 |
1 million Frisbees |
15 million Frisbees |
10 |
2 |
12 |
9 |
4 |
9 |
8 |
6 |
6 |
7 |
8 |
3 |
6 |
10 |
1 |
a.
What are the equilibrium price and quantity of
Frisbees?
b.
Frisbee manufacturers persuade the government
that Frisbee production improves scientists’ understanding of aerodynamics and
thus is important for national security. A concerned Congress votes to impose a
price floor of $2 above the equilibrium price. What is the new market price? How
many Frisbees are sold?
c.
Irate college students march on Washington and
demand a reduction in the price of Frisbees. An even more concerned Congress
votes to repeal the price floor and impose a price ceiling $1 below the former
price floor. What is the new market price? How many Frisbees are sold?
8. Suppose the federal government requires beer
drinkers to pay a $2 tax on each case of beer purchased. (In fact, both federal
and state governments impose beer taxes of some sort.)
a.
Draw a supply-and-demand diagram of the market
for beer without the tax. Show the price paid by consumers, the price received
by producers and the quantity of beer sold. What is the difference between the
price paid by consumers and the price received by producers?
b.
Now draw a supply-and-demand diagram for the beer
market with the tax. Show the price paid by consumers, the price received by
producers and the quantity of beer sold. What is the difference between the
price paid by consumers and the price received by producers? Has the quantity of
beer sold increased or decreased?
9.Explain how buyer’s willingness to pay, consumer surplus
and the demand curve are related.
10. Explain how seller’s costs, producer surplus, and
the supply curve are related.
11. In a supply-and-demand diagram, show producer and
consumer surplus in the market equilibrium.
12. What is efficiency? Is it the only goal of
economic policymakers?
13. Name two types of market failure. Explain why
each may cause market outcomes to be inefficient .