If a profit-maximizing firm’s fixed cost of producing widgets falls,
A. its total cost curve is unaffected.
B. its marginal cost curve shifts down.
C. the firm will produce more widgets.
D. the firm’s average profit per widget produced rises.
Answer: D
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The following graph depicts demand. 
The price elasticity of demand at point C is:
A. 16/3. B. 3/16. C. 3/8. D. 3/4.
What are the main influences on the FOMC federal funds rate decision?
What will be an ideal response?
The Laffer curve illustrates the relationship between
a. supply and demand. b. tax rates and tax revenues. c. opportunity cost and inflation. d. tax liability and taxable income.
Given the current tax rate structure and promised benefit levels, persons that are currently 40 years old or younger can expect to earn approximately what real rate of return on their Social Security contributions?
a. 0 percent b. 2 percent c. 10 to 12 percent d. 15 to 20 percent