14) Costas faces a progressive federal income tax structure that has the following
marginal tax rates: 0 percent on the first $10,000, 10 percent on the next $10,000, 15
percent on the next $10,000, 25 percent on the next $10,000, and 50 percent on all
additional income. In addition, he must pay 5 percent of his income in state income tax
and 15.3 percent of his labor income in federal payroll taxes. Costas earns $70,000 per
year in salary and another $20,000 per year in non-labor income. What is his average
tax rate, and what is his marginal tax rate on his salary?
a.His average tax rate is 17.19 percent, and the marginal tax rate on his salary is 55
percent.
b.His average tax rate is 50.23 percent, and the marginal tax rate on his salary is 70.3
percent.
c.His average tax rate is 53.63 percent, and the marginal tax rate on his salary is 70.3
percent.
d.His average tax rate is 55.79 percent, and the marginal tax rate on his salary is 70.3
percent.
15) Which of the following goods is the best example of a public good?
a.garbage-collection services that are provided by a municipal government
b.music that is broadcast over the airwaves by a privately-owned FM radio station
c.electricity that is provided to farmhouses by a rural electric cooperative
d.cable TV services that are provided by a privately-owned firm that is regulated by the
government of the city in which it operates
16) Since the early 1970s, average incomes have
a.increased, which has reduced the poverty rate.
b.increased, while the poverty rate increased slightly.
c.decreased, while the poverty rate has remained unchanged.
d.remained unchanged, while the poverty rate has decreased.
17) Which of the following would most likely serve as an example of a monopoly?
a.a bakery in a large city
b.a bank in a large city
c.a local cable television company
d.a small group of corn farmers