a. Explain the short-run and long-run impacts of oil price increase on output and price level in the U.S. during 1973-1975 periods using the model of aggregate demand and aggregate supply. No need to draw the AD-AS diagram. Explain in words.
b. Explain the short-run and long-run impacts of oil price fall on output and price level in the U.S. in 1986, using the model of aggregate demand and aggregate supply. No need to draw the AD-AS diagram. Explain in words.