________________ is defined as the application of the scientific method and materials to achieve objectives. Another definition is knowledge systematically applied to useful purposes

The insight that patterns of trade are primarily determined by international differences in labor productivity was first proposed by

A) Adam Smith. B) David Hume. C) David Ricardo. D) Eli Heckscher. E) Lerner and Samuelson.

The percentage of national income spent on health care

A) has steadily decreased since 1965. B) has steadily increased since 1965. C) increased until the end of the 1970s and then decreased in the 1980s and 2000s. D) decreased until the end of the 1970s and then increased in the 1980s and 2000s.