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Working Paper
How natural is the natural rate?
In the last two decades the one macroeconomic concept which has become standard equipment in macroeconomics is the Natural Rate Hypothesis (NRH). The NRH is usually embodied as a vertical aggregate supply curve and forms a cornerstone of the "policy ineffectiveness" proposition. We emphasize that the driving power of the policy ineffectiveness proposition derives from the joint assumptions that (a) the aggregate supply curve is vertical and (b) that the aggregate supply curve is independent of aggregate demand. ; We claim that this usage of the NRH is inappropriate for many purposes. It ...