Comparative advantage and relative opportunity costs are the same thing

The causes of prosperity that link high levels of prosperity to high levels of inputs of production, without explaining why the levels of those inputs are high, are referred to as:

A) fundamental causes of prosperity. B) implicit causes of prosperity. C) proximate causes of prosperity. D) explicit causes of prosperity.

Monetary policy authorities can affect real interest rates

A) in the short run, but not in the long run. B) in the long run, but not in the short run. C) permanently. D) both in the long run and the short run.