Shift of the supply curve

Question

Question 1) Holding everything else constant, the change in price that results from a leftward shift of the supply curve will be greater if:

a. the demand curve is relatively steeper than if the demand curve is relatively flat.
b. the demand curve is relatively flat than if the demand curve is relatively steep.
c. the demand curve is horizontal than if the demand curve is vertical.
d. the demand curve is horizontal than if the demand curve is downward sloping.
e. the demand curve is relatively elastic.

Question 2) The demand for a good decreases when the price of a substitute ____ and also decreases when the price of a complement ____.

a. rises; rises
b. rises; falls
c. falls; rises
d. falls; falls
e. the all of above are possible

Question 3) A central focus of microeconomics is:

a. aggregation
b. scarcity
c. GDP
d. economic growth
e. the rate of inflation

Question 4) Which of the following is a normative statement?

a. There are about 365 days in a year.
b. Microeconomics is the study of consumer choice, firms, and markets.
c. Macroeconomics is less helpful to consumers than microeconomics.
d. September was very hot this year compared to last year.
e. There are 725 students in lectures one and two of economics 101 during the fall semester of 2003.

Question 5) Holding everything else constant, if an increase in the price of one good leads to an increase in the quantity demanded of another good that is sold, then the two goods are:

a. Substitutes
b. Complements
c. Normal Goods
d. Inferior Goods
e. Unrelated Goods

For the next two questions consider the following domestic demand and supply curves:

Market demand is Qd=20-4P
Market supply is Qs=5+P

Question 6) Consumer surplus in equilibrium is:

a. $8
b. $15
c. $16
d. $18
e. $24

Question 7) If the world price is $2 and trade is allowed, how much is supplied by domestic suppliers?

a. 4
b. 5
c. 6
d. 7
e. 8

For this question and others like it, be sure to read all the answer choices.

Question 8) If a good is inferior, then:

a. An increase in income will decrease quantity demanded
b. An increase in income will increase quantity demanded
c. A decrease in the price of a related good in consumption will increase quantity demanded
d. Both a and c hold
e. Both b and c hold

Question 9) Which of the following would cause a movement along the supply curve for a good?

a. An increase in the price of an input
b. A decrease in the price of an input
c. An increase in the price of a related output in consumption
d. A reduction in the number of sellers of the good
e. An increase in the level of technology.

Question 10) What effect would very bad weather destroying much of the wheat crop have on the market for wheat?

a. A movement along the supply curve to a higher price
b. A movement along the supply curve to a lower price
c. An outward (rightward) shift in the supply curve
d. An inward (leftward) shift in the supply curve
e. The effect on the market is indeterminate

For the next three questions, consider the following diagram illustrating the demand and supply curves for a good.

Question 11)  What can we say about the demand curve, D, in the graph?

a. It is perfectly inelastic
b. It is perfectly elastic
c. It satisfies the Law of Demand
d. It violates the Law of Demand
e. It is unit elastic

Question 12) The equation of the demand curve is:

a. Q^d = 10 – 2P
b. Q^d = 20 + 2P
c.  Q^d = 20 – 2P
d. Q^d =10 – 1/2P
e. Q^d = 20 + 1/2P

Question 13) What would the slope of the supply curve have to be for the market equilibrium to be at P = 5, Q = 10?

a. 8/5
b. 5/8
c. 3/10
d. 3/8
e. 3/5

Price, $    Demand    Supply

10                20          5
20                10         10

Question 14) Using the information above, what is the equation of the demand curve?

a. Q^d = 10 – P
b. Q^d = 10 – 2P
c. Q^d = 10 – 3P
d. Q^d = 20 – P
e. Q^d = 30 – P

For the next two questions, consider the following demand schedule for a good. Assume the market consists of persons 1, 2, 3, and 4.

Price, $    Person 1    Person 2    Person 3    Person 4
0                  12            7               3               20
1                  10            6               3               17
2                   8             5               3               14
3                   6             4               3               11
4                   4             3               3                8
5                   2             2               3                5
6                   0             1               3                2

Question 15) What is the equation for the market demand curve?

a. Q^d = 7 – 1/6P
b. Q^d = 7 – 6P
c. Q^d = 42 – 6P
d. Q^d = 42 – 1/6P
e. Q^d = 6 – 6P

Question 16) If the market supply curve is Qs = 22 + 4P, what is the equilibrium?

a. P = 3, Q = 20
b. P = 3, Q = 30
c. P = 2, Q = 20
d. P = 2, Q = 30
e. P = 2, Q = 40

Question 17) The concept of comparative advantage is the comparison among producers of a good according to

a. their productivity.
b. their relative opportunity cost.
c. their efficiency.
d. the terms of trade advantage.
e. the demand they are facing.

Question 18) If Paul is more productive than David in all areas of production, then

a. neither Paul nor David can benefit from trade.
b. Paul can benefit from trade but David cannot.
c. David can benefit from trade but Paul cannot.
d. David will not have comparative advantage in any of the goods.
e. both Paul and David can benefit from trade.

Question 19) Consider the following PPF and answer which of the following combinations of good X and good Y is attainable and efficient.

a. (4,9)
b. (9,9)
c. (12,2)
d. (10,6)
e. (16,6)

Question 20) If Harry can produce 8 glasses (G) and 0 plates (P) or 3 glasses (G) and 4 plates (P), which of the following could be the equation for the linear PPF for Harry?

a. 4G + 5P = 32.
b. 5G + 4P = 8.
c. 4G + 5P = 8.
d. 5G + 5P = 32.
e. G + 5P = 8.

Question 21) Roger can make 15 pancakes in 30 minutes or 10 sandwiches in 10 minutes. The opportunity cost of 1 pancake to Roger is:

a. 2/3 of a sandwich.
b. 2 sandwiches.
c. 3/2 sandwich.
d. 1/2 of a sandwich.
e. 1/2 of a pancake.

Question 22) Demand is Qd=3-2P.  What is the point elasticity of demand at P=1, Q=1?

a. 1/2
b. 1/4
c. 2
d. 4
e. 1

Consider the following figures for the next two problems. The production possibility frontier for country A and country B can be represented by the following graphs:

Question 23) The opportunity cost of rice in terms of wheat in country A and the opportunity cost of rice in terms of wheat in country B are:

a. 1/2 and 3/2 respectively.
b. 3/2 and 1/2 respectively.
c. 2/3 and 1/2 respectively.
d. 2/3 and 2 respectively.
e. 2 and 2/3 respectively. 

Question 24) Which of the following is true?

a. Country A has absolute and comparative advantage in the production of rice.
b. Country B has absolute and comparative advantage in the production of rice.
c. Country A has absolute advantage in the production of rice and comparative advantage in the production of wheat.
d. Country B has absolute advantage in the production of rice and comparative advantage in the production of wheat.
e. Country B has absolute and comparative advantage in the production of wheat.

Question 25) Deadweight loss is the

a. Increase in government revenue when taxes are increased
b. Change in total consumer surplus when a tax is imposed
c. Change in total producer surplus when a tax is imposed
d. Reduction in total surplus that results from a tax
e. Change in total quantity of the good consumed

Question 26) Consider good A and good B. The demand elasticity of both goods is equal. Supply elasticity of A is greater than the supply elasticity of B. If the same percentage excise  tax were imposed on both goods, the tax on which good would create a larger deadweight loss?

a. Tax on good A
b. Tax on good B
c. Deadweight loss will be same
d. The question is impossible to answer without knowing the prices of the two goods.
e. Deadweight loss will depend upon the prices of complementary goods of the two goods.

Question 27) A $4 tax on the suppliers of DVDs will shift the supply curve:

a. right (downward) by exactly $4.
b. right (downward) by slightly more than $4.
c. left (upward) by slightly less than $4
d. left (upward) by exactly $4
e. the tax has no affect on the supply curve.

Question 28) Consider the equation of a line 6x+11y=13. The slope and y-intercept of the line are:

a. slope=13/11, intercept=6/11
b. slope= -11/6, intercept=13/11
c. slope=6/11, intercept=13/11
d. slope= -6/11, intercept= -13/11
e. slope= -6/11, intercept= 13/11

Question 29) Consider a market for widgets. The equilibrium quantity of widgets is 150 and  equilibrium price is $5. The government imposes a tax of $2/unit on widgets and raises $250 as revenue. The equilibrium number of widgets has fallen by:

a. 30 per month
b. 25 per month
c. 35 per month
d. 20 per month
e. 40 per month

Question 30) Suppose the supply curve of a good is upward sloping and the demand curve is vertical (perfectly inelastic). If a tax is imposed on the seller of the good the economic burden of the tax will fall

a. completely on the seller.
b. half on the buyer and half on the seller.
c. 1/3 rd on the buyer and 1/3 rd on the seller.
d. completely on the buyer.
e. 1/3 rd on the seller and 1/3 rd on the buyer.

The next two questions are based on the information given below.

Market demand: P=9-Qd
Market supply: P=1+3Qs

Question 31) The market equilibrium is

a. Q=1, P=3
b. Q=2, P=4
c. Q=2, P=7
d. Q=4, P=5
e. Q=4, P=6

Question 32) Assume now that the government sets a price ceiling of $5, i.e. the market price cannot be more than $5. Calculate the amount demanded by consumers at $5. Also calculate the price that producers will require in order to supply the amount that is demanded by consumers at $5.

a. quantity demanded=4, price required=10
b. quantity demanded=4, price required=13
c. quantity demanded=4, price required=19
d. quantity demanded=5, price required=16
e. quantity demanded=7, price required=22

The next two questions are based on the information given below.
Consider a market.

Market demand is P=20-5Qd.
Market supply is P=4+3Qs.
Market equilibrium is therefore (quantity=2, price=10).

Note that you do not have to calculate market equilibrium.

Question 33) Find consumer surplus (CS) and producer surplus (PS).

a. CS=8, PS=4.
b. CS=12, PS=6.
c. CS=10, PS=6.
d. CS=10, PS=12.
e. CS=6, PS=10.

Question 34) Now suppose the government imposes a tax that reduces the equilibrium quantity sold (and consumed) in the market to 1. Find the deadweight loss.

a. $3
b. $4
c. $2
d. $5
e. $1

Question 35) If the price elasticity of demand for cigarettes is 0.75, then a 20 percent increase in price would result in a

a. 10 percent decrease in the quantity demanded.
b. 15 percent decrease in the quantity demanded.
c. 20 percent decrease in the quantity demanded.
d. 100 percent decrease in the quantity demanded.
e. No change because we know that the demand of cigarettes is inelastic.

Question 36) According to the graph above, with a price floor present in this market, when the supply curve for gasoline shifts from S1 to S2

a. the market price will fall to P2.
b. a surplus will occur at the price floor of P3.
c. a surplus will occur at the new market price of P2.
d. the market price will stay at P1 due to the pricing floor.
e. This market is unaffected by the price floor.

Question 37) Suppose demand is Qd=8-2P.  At what price will the point elasticity be 1?

a. $1.00
b. $1.25
c. $1.50
d. $1.75
e. $2.00

Question 38) In the market above the government is implementing an agricultural price support program. In this program the government sets a price floor at price G.  The amount paid by the government in this program can be represented by the area:

a. ABCD
b. DCEF
c. ABFE
d. GBCH
e. GADH

Question 39) With demand as is shown in the graph above, at point “A” revenue would _____ if price rose.  At point “B” revenue would _____ if price rose.  At point “C” revenue would ______ if price rose.

a. increase, increase, increase
b. increase, decrease, increase
c. decrease, increase, decrease
d. decrease, decrease, decrease
e. increase, increase, decrease