The natural rate hypothesis states that there exists an unemployment rate at which inflation is stable, and that this … unemployment rate is independent of aggregate demand shocks. The hysteresis hypothesis, in contrast, states that the long run … unemployment rate can be affected by aggregate demand shocks. While policy makers have warned of the risk of hysteresis since the …

We propose that the natural rate of unemployment has an active role in the business cycle, in contrast to the … Phillips-curve framework of low---often extremely low---response of inflation to unemployment could be the result of fairly … most Phillips-curve studies, that conclude that inflation has little relation to unemployment. We suggest that the flat …