题目内容

12) Trade between two countries

A. . makes both countries better off.
B. . can benefit one country but not both.
C. . causes one country to gain and the other country to lose.
D. . is a zero-sum game.

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Suppose the price of Coke increases. What would happen to the equilibrium price and quantity of Pepsi?

A. . Both the equilibrium price and quantity of Pepsi would increase.
B. . Both the equilibrium price and quantity of Pepsi would decrease.
C. . The equilibrium price of Pepsi would increase, and the equilibrium quantity of Pepsi would decrease.
D. . The equilibrium price of Pepsi would decrease, and the equilibrium quantity of Pepsi would increase.

Suppose oranges are currently selling for $2.00 per pound. The equilibrium price of oranges is $1.56 per pound. We would expect

A. . a shortage to exist and the market price of oranges to increase.
B. . a shortage to exist and the market price of oranges to decrease.
C. . a surplus to exist and the market price of oranges to increase.
D. . a surplus to exist and the market price of oranges to decrease.

When income increases, purchases of houses increase. This means

A. . the demand curve for housing has shifted rightward.
B. . there has been a movement down the demand curve for housing.
C. . the demand curve for housing has shifted leftward.
D. . there has been a movement up the demand curve for housing.

Which of the following is a characteristic of perfect competition?

A. . A single seller.
B. . A small number of buyers.
C. . Buyers and sellers are price setters.
D. . Buyers and sellers are price takers.

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