A bond that is currently selling at $1000 offers to pay $50 annually. What is the percentage rate of return on the bond?

Consumers expect that the price of a gallon of gasoline will rise next week. As a result

A) today's supply of gasoline increases. B) today's demand for gasoline increases. C) the price of a gallon of gasoline falls today. D) next week's supply of gasoline decreases.

Refer to Figure 5-1. If, because of an externality, the economically efficient output is Q2 and not the current equilibrium output of Q1, what does S2 represent?

A) the market supply curve reflecting marginal social cost B) the market supply curve reflecting implicit cost C) the market supply curve reflecting marginal private cost D) the market supply curve reflecting external cost