Total wages paid to labor are maximized when workers are hired up to the point where the

The concept of comparative advantage is based upon:

A) absolute labor productivity. B) relative labor costs. C) dollar prices of labor. D) relative opportunity costs.

Under the Soviet system of communism,

A) technological progress was slow because managers had little incentive to develop new technologies. B) managerial pay was determined by the extent to which managers could lower the per-unit costs of production. C) the per-worker production function in the Soviet Union shifted up more rapidly than production functions in other countries. D) competitive pressures in the Soviet Union allowed the country's technological progress to keep pace with the rest of the world.