One difficulty with any explanation of economic fluctuations based on a shift in labor supply is that
a. workers' preferences tend to change very quickly
b. labor supply shifts all the time without causing recessions or expansions
c. labor supply is difficult to measure
d. workers' preferences tend to change very slowly
e. the unemployment rate changes during economic fluctuations
D
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Land of Many Lakes (LML) sells butter to a broker in Albert Lea, Minnesota. Because the market for butter is generally considered to be competitive, LML does not
a. choose the quantity of butter to produce. b. set marginal revenue equal to marginal cost to maximize profit. c. have any fixed costs of production. d. choose the price at which it sells its butter.
Trade allows each country to take advantage of lower ___________ costs in the other country.
a. replacement b. opportunity c. marginal d. retail