What is the relationship between potential output and the natural rate of unemployment? 

a. If the economy currently has a frictional unemployment rate of 2 percent, structural unemployment of 2 percent, seasonal unemployment of 0.5 percent, and cyclical unemployment of 2 percent, what is the natural rate of unemployment? Where is the economy operating relative to its potential GDP? 

b. What happens to the natural rate of unemployment and potential GDP if cyclical unemployment rises to 3 percent with other types of unemployment unchanged from part (a)? 

c. What happens to the natural rate of unemployment and potential GDP if structural unemployment falls to 1.5  percent with other types of unemployment unchanged from part (a)?