The federal funds rate is not just targeted by the Fed but is determined by the Fed. Market forces are irrelevant

In the above figure, what is the marginal cost of the 4th pizza?

A) $0 B) $4 C) $9 D) $36 E) 4 pizzas

Which of the following addresses agency costs

a. advertising for employee positions in as many outlets as possible b. hiring only from job fairs c. spot checks of the quality of employee work d. reducing the number of holidays