A student is trying to decide whether to study for the upcoming exam or play video games. The optimal amount of time spent studying is:
a. where the total benefit of studying is equal to the total cost of studying.
b. where the marginal benefit of studying is equal to the total cost of studying.
c. where the marginal benefit of studying equals the marginal cost of studying.
d. where the total benefit of studying equals the total cost of studying.
c
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Based on the figure below. Starting from long-run equilibrium at point C, an increase in government spending that increases aggregate demand from AD to AD1 will lead to a short-run equilibrium at point ________ creating _____gap. 
A. D; an expansionary B. B; no output C. B; expansionary D. A; a recessionary
The natural rate of unemployment includes
A) frictional and cyclical unemployment. B) frictional unemployment and structural unemployment. C) only cyclical unemployment. D) only unemployment due to layoffs and corporate downsizing.
If patients were allowed to sue their HMO, we would expect
A) the demand curve for health care services provided by the HMO to shift to the left and the price of HMO-provided health care coverage to fall. B) the supply curve for health care services provided by the HMO to shift to the left and the price of HMO-provided health care coverage to rise. C) the supply curve for health care services provided by the HMO to shift to the right and the price of HMO-provided health care coverage to fall. D) a and b E) none of the above
Other things equal, the combination of a ________ saving rate and a ________ real interest rate will result in the largest accumulation of wealth over time.
A. high; zero B. low; high C. high; low D. high; high