9. What theories argue that fluctuations in output are determined by aggregate demand?
Discuss the role of monetary policy in each of these models.
10. Will systematic and, therefore, predictable changes in aggregate demand affect the level of
real output in the new classical and monetarist models? How about in the Keynesian model.
Explain why or why not.
Additional Essay Questions and/or Problems:
10. Postwar recessions have been less frequent than prewar recessions. Provide an explanation
of this observation from the perspective of each of the following theories: (i) Keynesian
model, (ii) the monetarist model, (iii) the rational expectations model, (iv) the real business
cycle model.
11. Compare the role of monetary policy in each of the major macroeconomic systems
considered in Part II. In which is money most important? In which is it least important?
12. Compare the role of fiscal policy in each of the major macroeconomic systems considered
in Part II. In which is fiscal policy most effective? In which is it least effective?
13. Explain the role which aggregate demand plays in the determination of real output in each
of the major macroeconomic models we have considered.
14. Contrast the theories of aggregate supply within the four macroeconomic models we have
studied: the classical, Keynesian, monetarist, and new classical models.
Multiple-Choice Questions:
1. Which macroeconomic model dominated macroeconomic analysis from the early post-
World War II era until the late 1960s?