9) Over the past decade, U.S. per capita consumption of water:
A.and energy have both increased.
B.has increased, while per capita consumption of energy has fallen.
C.and energy have leveled off or fallen.
D.has fallen, while per capita consumption of energy has increased.
10) Assume you pay a tax of $4,000 on a taxable income of $24,000. If your taxable
income were $30,000, your tax payment would be $5,000. This suggests that the tax is:
A.progressive.
B.proportional.
C.regressive.
D.discriminatory.
11) Over the range of output where the slope of the short-run total cost curve becomes
steeper:
A.Fixed costs are increasing
B.Marginal cost is increasing
C.Marginal cost is positive, but decreasing
D.Marginal cost is lower than average variable cost
12) In the U.S. market economy, the government performs the following prominent
roles, except:
A.Provide public goods and services
B.Promote economic stability and growth
C.Set prices for most resources
D.Modifies the distribution of income
13) Neoclassical economics assumes that people have the following characteristics,
except:
A.They are stable and definite in their tastes and preferences