If a firm experiences constant returns to scale at all output levels, then its long-run average total cost curve would
a. slope downward
b. be horizontal
c. slope upward
d. slope downward for low output levels and upward for high output levels
e. slope upward for low output levels and downward for high output levels
B
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The table above lists the market shares of the twenty makers of personal computers. The four-firm concentration equals
A) 5 percent. B) 20 percent. C) 25 percent. D) 100 percent.
Given the equations for C, I, G, and NX below, what is the marginal propensity to save?
C = 1,000 + 0.8Y I = 1,500 G =1,250 NX = 100 A) 0.2 B) 0.8 C) 1.8 D) 10
Which of the following is a service?
a. anything that is scarce and that satisfies unlimited human wants b. a thing for which people pay money c. an intangible activity that satisfies human wants d. any output produced by a service-sector industry, such as fast food e. something less desirable than a good
In order to impact aggregate demand and the economy, the Fed needs to be able to influence:
A. every measure of the money supply. B. MB only. C. MB and M1 D. M1 and M2.