Series: Working Papers. 2528.
Author: Galo Nuño.
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Abstract
The natural interest rate is the real rate that would prevail in the long run. The standard view in macroeconomics is that the natural rate depends exclusively on structural factors, such as productivity growth and demographics. This paper challenges this view by discussing three alternative, and complementary, views: i) that the natural rate depends on fiscal policy via the stock of risk-free assets; ii) that it depends on monetary policy via the central bank inflation target; and iii) that it depends on persistent supply shocks, such as tariffs or wars. These three theories share the relevance of precautionary saving motives. The paper concludes by drawing some lessons for monetary policy design.