14) Economists generally agree that
a.human capital theory provides the best explanation of discriminatory practices.
b.differences in average wages do not by themselves provide conclusive evidence about
the magnitude of discrimination in labor markets.
c.discrimination is exclusively an economic, rather than political, phenomenon.
d.most of the wage differentials observed in the U.S. economy are due to
discrimination.
15) Relative to a situation in which gasoline is not taxed, the imposition of a tax on
gasoline causes the quantity of gasoline demanded to
a.decrease and the quantity of gasoline supplied to decrease.
b.decrease and the quantity of gasoline supplied to increase.
c.increase and the quantity of gasoline supplied to decrease.
d.increase and the quantity of gasoline supplied to increase.
16) The theory of efficiency wages asserts that
a.employers set wages based on each employee’s productivity.
b.employers strive to hold wages below equilibrium levels.
c.employers may find it profitable to pay above-equilibrium wages.
d.efficient workers actually earn lower wages than those earned by inefficient workers.
17) Which of the following statements is not correct?
a.An invisible hand leads buyers and sellers to an equilibrium that maximizes total
surplus.
b.Market power can cause markets to be inefficient.
c.Externalities can cause markets to be inefficient.
d.The invisible hand can remedy all types of market failures.
18) Table 17-32
Suppose that Angelina and Brad own the only two professional photography stores in
town. Each must choose between a low price and a high price for senior photo
packages. The annual economic profit from each strategy is indicated in the table
below: