When the marginal product of labor exceeds the average product of labor, the average product must increase when employment increases

The interest rate private banks charge each other for lending reserves is called the federal funds rate.

a. true b. false

In the above figure, what is the marginal social cost to the economy of producing the four-hundredth pretzel?

A) $0 B) $2.00 C) $4.00 D) None of the above answers are correct.