S. Payesteh                                              ECO 203/204              Name _____________________

 

Homework #2

 

1.            A shortage occurs whenever:

a)       the price is below equilibrium
b)       the price is above equilibrium
c)       resources are unemployed
d)       there is a price floor

2.            Which of the following causes the demand for hot dogs to increase?

a)       a decline in the price of hot dogs
b)       an increase in the price of hamburgers
c)       an increase in the price of hot dog buns
d)       a decrease in the wages of hot dog makers

3.            A leftward shift of the demand curve is called:

a)       a decrease in price
b)       a decrease in output
c)       a decrease in demand
d)       a decrease in income

4.            Compared to lower-income families, high-income families consume less of which of the following kinds of goods?

a)       substitute goods
b)       complementary goods
c)       normal goods
d)       inferior goods

5.            A higher price of good X causes the demand for good Z to fall if goods X and Z are:

a)       complementary goods
b)       substitute goods
c)       inferior goods
d)       in equilibrium

6.            If the price of a good is above the equilibrium price, which of the following occurs as the market moves to equilibrium?

a)       demand increases
b)       supply decreases
c)       the price falls
d)       all the alternatives are correct

7.            If goods A and B are two alternative goods that a producer could produce with the same resources, which of the following causes an increase in the supply of good A?

a)       an increase in the price of good A
b)       a decrease in the price of good B
c)       an increase in the demand for good B
d)       an increase in the cost of producing good A

8.            When the supply curve is a vertical line, which of the following is true?

a)       changes in demand have no impact on the amount of the good producers sell
b)       there is no equilibrium
c)       the equilibrium price is the same regardless of demand
d)       the law of demand does not hold

9.            Which of the following best explains why the equilibrium price of wool would fall at the same time the equilibrium quantity would rise?

a)       consumers, but not producers, of wool expect a higher future price
b)       producers, but not consumers, of wool expect a lower future price
c)       abnormally cold weather increases the demand for wool sweaters
d)       the cost of feeding sheep increased

 

PROBLEMS

 

1.            For each of the following events described, shift the curve or curves in the appropriate way in the figure that follows each question.  Record for each event what has happened to demand, to supply, and to the equilibrium values of price and quantity.  For example, in a) the demand curve shifted to the right because the demand for a normal good increases when income rises.  As a result, the answers are:  demand has increased, supply has not changed, the equilibrium price has increased, and the equilibrium quantity has also increased.

 

I = increase                                               D = decrease                                           NC = no change

 

 

EVENT                                                                                     DEMAND             SUPPLY    EQULIBRIUM PRICE           EQUILIBRIUM QUANTITY

 

 

 

a)      What happens in the movie market if                                I                       NC                             I                                      I

          movies are a normal good and consumers

          receive more income?

 

 

 

 

 

 

 

 

 

 

 

 

b)      What is the impact in the wooden yo-yo

          market if the price of wood increases?

 

 

c)      What happens in the market for big,

          gas-guzzling cars if the price of gasoline

falls?

 

                                                                  

EVENT                                                                                                 DEMAND     SUPPLY      EQULIBRIUM PRICE           EQUILIBRIUM QUANTITY

 

d)      What happens in the market for

wood-burning stoves if there is a

decrease in the price of electricity

and natural gas?

 

e)      What happens in the wheat market if

          scientists discover a higher-yielding

          strain of wheat?

f)       What happens in the beef market if

          there is an increase in the price of

          chicken and an increase in the price of

          feed for cattle?



EVENT                                                                                                DEMAND    SUPPLY     EQULIBRIUM PRICE           EQUILIBRIUM QUANTITY

 

g)      What happens in the gold market if

both consumers and producers begin to

          expect a lower future price of gold?

h)      What happens in the market for

          potatoes, an inferior good, if incomes

          rise at the same time that a freeze kills

          some potato buds?

 

2.      a)      In Figure 4.1, show the impact of a price ceiling set at $300.  What is the:

                   quantity demanded? _______________________________________________________

                   quantity supplied? _________________________________________________________

                   price paid by consumers? ___________________________________________________

                   quantity consumed by consumers ____________________________________________

 

          b)      In Figure 4.1, show the impact of a price ceiling set at $100.  What is the:
                   quantity demanded? _______________________________________________________

                   quantity supplied? _________________________________________________________

                   price paid by consumers? ___________________________________________________

                   quantity consumed by consumers? ___________________________________________

 

 

 

 

3.      a)      In Figure 4.2, plot a demand curve based on the accompanying data.

 

 

          b) What is the equilibrium price? ________________________________________________

 

          c)      What is the equilibrium quantity? _____________________________________________