Suppose that the U.S. economy is initially in Long Run Macroeconomic Equilibrium. An increase in the corporate income tax rate will lead the U.S. ____ curve to shift and create a(n) ____.
A. Short Run Aggregate Supply; recessionary gap
B. Short Run Aggregate Supply; expansionary gap
C. Aggregate Demand; recessionary gap
D. Aggregate Demand; expansionary gap