Money's principal function is to serve as a

The above figure shows the isoquants for producing steel. Decreasing returns to scale are

A) present when producing more than 10,000 tons. B) present when producing more than 20,000 tons. C) present when producing more than 30,000 tons. D) never present.

In the balance of payments accounts, a net importer of capital is a nation that

a. sells more goods in foreign countries than it imports. b. must be running a trade surplus. c. sells more assets to individuals in other countries than the assets it buys from them. d. buys more assets from individuals in other countries than the assets it sells to them.