Refer to Table 15-1. What is the marginal revenue from the sale of the 12th unit?

Refer to Table 9-11. Prior to trade, what was the opportunity cost to produce 1 clock in Belize?

A) 1/2 of a hat B) 2/3 of a hat C) 1.5 hats D) 2 hats

Identify the market structure characterized by many small firms selling somewhat different products

a. Monopoly b. Monopolistic competition c. Perfect competition d. Duopoly