Opportunity cost is defined as
A) the highest valued alternative that must be given up to engage in an activity.
B) the benefit of an activity.
C) the total value of all alternatives that must be given up to engage in an activity.
D) the monetary expense associated with an activity.
A
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Federal government expenditures, as a percentage of GDP
A) rose from 1950 to 1991, fell from 1992 to 2001, and have risen from 2001 to the present. B) rose from 1950 to 1980, fell from 1981 to 2001, and have risen from 2001 to the present. C) have fallen since the early 1950s to the present. D) have risen since the early 1950s to the present. E) rose from 1950 to 2001 and then fell from 2001 to the present.
During the past several decades, foreign aid to sub-Saharan Africa
a. has been smaller than the aid to other regions, but the reduction in the extreme poverty rate has been larger in Africa than in other areas of the world. b. has been larger than the aid to other regions, but the reduction in the extreme poverty rate has been smaller in Africa than in other areas of the world. c. has declined and as a result the poverty rate in sub-Saharan Africa has risen sharply. d. has risen and, as a result, the poverty rate in sub-Saharan Africa has declined substantially.
If one person’s use of a good does not diminish another’s ability to use it, the good is _
a. excludable b. nonexcludable c. rival d. nonrival
Suppose a monopoly concrete contractor builds 20 driveways per month for $10,000 each. In order to increase sales to 21 driveways, the contractor must lower the price of driveways to $9,500. The marginal revenue of the 21st driveway is
A. $500. B. -$500. C. $9,500. D. $199,500.