Chapter 16: Expectations Theory and the Economy Flashcards
Phillips Curve
A curve that originally showed the relationship between wage inflation and unemployment and that now more often shows the relationship between price inflation and unemployment.
Relationship between money wage rates and unemployment rates
Inverse relationship
What does the inverse relationship between money wage rates and unemployment rates suggest
A trade-off between wage inflation and unemployment.
Higher wage inflation means lower unemployment; lower wage inflation means higher unemployment.
The combination of low wage inflation and low unemployment is unlikely.
Both lowering wage inflation and unemployment is impossible.
Stagflation
The simultaneous occurrence of high rates of inflation and unemployment.
2 Phillips curves
- Short-run Phillips curve
- Long-run Phillips curve
Milton Friedman on the tradeoff between inflation and unemployment
There is a trade-off in the short run but not in the long run.
Friedman Natural Rate Theory
Within the Phillips curve framework, the idea that, in the long run, unemployment is at its natural rate and that there is a long-run Phillips curve, which is vertical ath the natural rate of unemployment.
2 Points in the Friedman Natural Rate Theory
- Wages and Rates are flexible
- Expectations are formed adaptively.
Adaptive Expectations
Expectations that individuals form from past experience and modify slowly as the present and the future become the past.
Rational Expectations
Expectations that individuals form based on past experience and on their predictions about the effects of present and future policy actions and events.
Policy Ineffectiveness Proposition (PIP)
If (1) a policy change is correctly anticipated, (2) individuals form their expectations rationally, and (3) wages and prices are flexible, then neither fiscal policy nor monetary policy is effective at meeting macroeconomic goals.
4 Cases in New Classical theory
1: Policy Correctly Anticipated
2: Policy Incorrectly Anticipated (Bias Upward)
3: Policy Incorrectly Anticipated (Bias Downward)
4: Policy Unanticipated