The four-firm concentration ratio (C4) of a market can be used to help determine whether firms may have market power.

The deviation of unemployment from its natural rate is called cyclical unemployment

a. True b. False Indicate whether the statement is true or false

In a two-nation world, comparative advantage in the production of a particular product means that one nation can produce:

A. The product with fewer inputs than the other nation B. The product at lower average cost than the other nation C. The product at a lower domestic opportunity cost than the other nation D. More of the product than the other nation