The United States is the largest national economy in the world

Consumer surplus, the net benefit that consumers get from market exchange, can be used to:

a. measure purchasing power of consumers. b. measure market supply. c. measure economic welfare. d. measure economic growth.

According to research by Robert Fogel, people in Britain grew taller because of

a. genetics. However this increase in height had no effect on productivity. b. genetics. This increase in height is associated with higher productivity. c. higher caloric intake. However, this increase in height had no effect on productivity. d. higher caloric intake. This increase in height is associated with higher productivity.