2. Illustrate the effects of the following developments on both the short-run and long-run Phillips curves. Give
the economic reasoning underlying your answers.
a. a rise in the natural rate of unemployment
b. a decline in the price of imported oil
c. a rise in government spending
d. a decline in expected inflation

See diagram.we use washers to get the area and we will be integrating with respect to xouter radius is the  distance between y = e^x and y = -1    inner radius of washer is the distance between y = 1 and y = -1    the area of one cross-section of a washer is    solid lies between x = 0 and x = 2. the volume is    if you need this expanded, then    the question doesn't say to evaluate, so we're done.   

Ibelieve the answer would be a