76 . A price "bubble" is most likely to result from:
　　A)   increases in price that increase expected future prices.
　　B)    a significant increase consumers’ preference for a good.
　　C)    increases in input prices that decrease supply.
　　77 . Which of the following statements about price floors and the labor market is least accurate?
　　A)   In the long run, effective price floors lead to inefficiencies in production.
　　B)    If a price floor is set below the equilibrium price, the quantity demanded will exceed the quantity supplied.
　　C)    Setting a minimum wage above the equilibrium wage rate will lead to an excess supply of labor.
　　78 . Even though the producer surplus increases under a monopoly scenario, relative to one of perfect competition, the consumer surplus decreases by:
　　A)   a greater amount.
　　B)    a lesser amount.
　　C)    an equal amount.
　　79 . If the last unit of input increases total product we know that the marginal product of that input is:
　　A)   falling.
　　B)    positive.
　　C)    increasing.
　　80 . If the last unit of input increases total product we know that the marginal product of that input is:
　　A)   falling.
　　B)    positive.
　　C)    increasing.
　　
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