18) Which of the following is not an aggregate-demand-side explanation of business
cycles?
A.the real-business-cycle theory
B.the idea of coordination failures
C.mainstream macroeconomics
D.monetarism
19) in an economy experiencing a persistently falling price level:
a.potential gdp will necessarily exceed actual gdp.
b.changes in nominal gdp may either overstate or understate changes in real gdp.
c.changes in nominal gdp understate changes in real gdp.
d.changes in nominal gdp overstate changes in real gdp.
20) the concept of opportunity cost:
a.is irrelevant in socialistic economies because of central planning.
b.suggests that the use of resources in any particular line of production means that
alternative outputs must be forgone.
c.is irrelevant if the production possibilities curve is shifting to the right.
d.suggests that insatiable wants can be fulfilled.
21) two major virtues of the market system are that it:
a.allocates resources efficiently and allows economic freedom.
b.results in an equitable personal distribution of income and always maintains full
employment.
c.results in price level stability and a fair personal distribution of income.
d.eliminates discrimination and minimizes environmental pollution.
22) suppose that an individual sees a tremendous opportunity to produce and sell a new
product, but dismisses the idea because there is no way to exploit this opportunity for
personal gain. this situation best identifies the:
a.coordination problem under communist central planning.
b.self-sufficiency dilemma under communism.
c.asymmetric information problem under communism.