Which of the following statements is correct?
a. The human-capital theory of education could be called a productivity-enhancing theory.
b. The human-capital theory of education could be called a productivity-revealing theory.
c. The signaling theory of education could be called a productivity-enhancing theory.
d. The signaling theory of education has been disproven by a number of prominent economists.
a
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The above figure shows the demand and cost curves facing a monopoly. If a $100 per unit tax is charged, what is the incidence of the tax on consumers?
A) 100% B) 50% C) 25% D) 0%
Using the expenditure approach, gross domestic product equals:
A. gross national product. B. the sum of consumption, investment, government purchases. C. the sum of consumption, investment, government purchases, and net exports. D. gross national product minus net exports.
A lender need not be penalized by inflation if the:
A. long-term rate of inflation is less than the short-term rate of inflation. B. short-term rate of inflation is less than the long-term rate of inflation. C. lender correctly anticipates inflation and increases the nominal interest rate accordingly. D. inflation is unanticipated by both borrower and lender.
Refer to the data provided in Table 10.2 below to answer the following question(s).
Table 10.2 
Refer to Table 10.2. If workers are paid $150 per day, then the firm is profit maximizing when it hires ________ workers.
A. two B. three C. four D. five