The national debt increased approximately sixfold between

An efficient allocation of resources occurs when we

A) produce the goods and services that people need. B) cannot produce more of a good or service without giving up some other good or service that we value more highly. C) produce the goods and services that people want. D) cannot produce more of a good or service without giving up some other good or service that we need.

As interest rates rise, the quantity of money demanded

A) falls. B) rises. C) stays the same. D) does not react to interest rate changes.