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In the diagram, the long-run Phillips curve is the vertical red line. The NAIRU theory says that when unemployment is at the rate defined by this line, inflation will be stable. However, in the short-run policymakers will face an inflation-unemployment rate trade-off marked by the "Initial Short-Run Phillips Curve" in the graph.
This exhibits a Phillips curve relationship, as inflation is positively related with output (i.e. inflation is negatively related with unemployment). However, and this is the point, the existence of a short-run Phillips curve does not make the central bank capable of exploiting this relationship in a systematic way.
The Beveridge curve, or UV curve, was developed in 1958 by Christopher Dow and Leslie Arthur Dicks-Mireaux. [2] [3] They were interested in measuring excess demand in the goods market for the guidance of Keynesian fiscal policies and took British data on vacancies and unemployment in the labour market as a proxy, since excess demand is unobservable.
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The non-accelerating inflation rate of unemployment (NAIRU) [1] is a theoretical level of unemployment below which inflation would be expected to rise. [2] It was first introduced as the NIRU (non-inflationary rate of unemployment) by Franco Modigliani and Lucas Papademos in 1975, as an improvement over the "natural rate of unemployment" concept, [3] [4] [5] which was proposed earlier by ...
The LM curve may shift because of a change in monetary policy or possibly a change in inflation expectations, whereas the IS curve as in the traditional model may shift either because of a change in fiscal policy affecting government consumption or taxation, or because of shocks affecting private consumption or investment (or, in the open ...
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Milton Friedman argued that a natural rate of inflation followed from the Phillips curve.This showed wages tend to rise when unemployment is low. Friedman argued that inflation was the same as wage rises, and built his argument upon a widely believed idea, that a stable negative relation between inflation and unemployment existed. [11]