The Phillips curve is an economic concept which was given by A. W. Phillips . It tells us that inflation and unemployment have a stable and inverse relationship in general . The theory claims that with economic growth comes inflation because higher money supply or expansionary policy leads to economic growth and also inflation , which in turn should lead to more jobs and less unemployment . So when inflation increases , unemployment decreases . The curve is downward sloping .
NAIRU is defined as a specific level of unemployment in an economy that will not cause inflation to increase . If unemployment rate is at NAIRU , then inflation is constant . NAIRU is shown by the vertical long run Phillips curve . It is also called the equilibrium or natural state .
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