In the above figure, the opportunity cost of moving from point D to point C is

If the average product of labor equals the marginal product of labor, then

A) the average product of labor is at a maximum. B) the marginal product of labor is at a maximum. C) Both A and B above. D) Neither A nor B above.

Economists

A) describe reducing tariffs and quotas as shallow integration. B) describe reducing tariffs and quotas as deep integration. C) believe that changing domestic policies affecting trade is a relatively simple process. D) believe that the work of reducing trade barriers is done since most tariffs are low and most quotas eliminated.