Long-run Phillips curve shifts will occur when there is a change in the natural rate of unemployment. At the natural rate of unemployment, the long-run Phillips curve is vertical. You can read about the Inflation in Economy- Types of Inflation, Inflation Remedies [UPSC Notes] in the given link.
Shifts of the entire short-run Phillips curve correspond to shifts of the short-run aggregate supply curve. Movements along the short-run Phillips curve correspond to shifts in aggregate demand.
Further readings:
- Inflation Targeting: Methods, Drawbacks and Benefits
- Indian Economy Notes For UPSC Exam [Download PDFs]
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