Spot checks:
A. monitor the effort of workers precisely.
B. must be frequent enough to induce workers not to risk getting caught shirking.
C. measure presence only.
D. are the same as spot markets.
Answer: B
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This graph shows the marginal cost and marginal benefit associated with roadside litter clean up. Assume that the marginal benefit curve and marginal cost curve each have their usual slope. 
The socially optimal number of bags of litter removed from the roadside each day is:
A. 20. B. 15. C. 10. D. 30.
Stable velocity of money is crucial component of the
a. monetarist model. b. Keynesian model. c. new Keynesian model. d. IS-LM model.
The market that coordinates the exchange of productive inputs between the household and business sectors is the
a. stock market. b. goods and services market. c. resource market. d. loanable funds market.
Look at the following data: The structural unemployment rate is 4 percent, the natural unemployment rate is 5 percent, and the cyclical unemployment rate is 3 percent. The frictional unemployment rate is ____________ percent and the actual unemployment rate is __________ percent
A) 2; 7 B) 2; 8 C) 1; 7 D) 1; 8