Macroeconomists cannot conduct controlled experiments, such as testing various tax
and expenditure policies, because:
A) it is against the law.
B) they tried it once and it did not work.
C) they must make use of the data history gives them.
D) economists already know the answers that would come out of the experiments.
Starting from a short-run equilibrium greater than the natural rate of output, as the
economy returns to a long-run equilibrium:
A) both output and the price level will increase.
B) output will decrease, but the price level will increase.
C) output will increase, but the price level will decrease.
D) both output and the price level will decrease.
The theory of liquidity preference implies that:
A) as the interest rate rises, the demand for real balances will fall.