143. The price consumers pay for a product in a perfectly competitive market is an inaccurate reflection of
opportunity cost.
144. In order to attain the optimal mix of output, we must know the opportunity cost of producing different goods.
145. When resources are earning zero economic profits for a firm, the resources could earn more in their next best
alternative use.
146. As in other industries, the market structure of the computer industry has evolved over time. It began as
a monopoly and then became perfectly competitive.
147. Explain how the market supply curve is derived in a perfectly competitive market. Identify five factors that would
cause the market supply curve to shift.
148. Explain why economic profits in all perfectly competitive markets will tend toward zero in the long run.