An increase in the real interest rate will cause an increase in ________

One explanation given in the video for the fluctuations of an economy's real growth rate around its potential growth rate is:

A. that there are often shocks to the planned level of spending. B. that there are often shocks to the money supply. C. that the potential growth is inaccurately calculated. D. that there are often shocks to the key growth factors

According to Keynesian economists, when the price level is constant, a downward shift in the aggregate expenditure curve is associated with

a. a rightward shift (increase) in the aggregate supply curve b. a leftward shift (decrease) in the aggregate supply curve c. a rightward shift (increase) in the aggregate supply curve d. a leftward shift (decrease) in the aggregate supply curve e. change in either the aggregate demand or aggregate supply curves