RegStream

Obtaining reliable estimates of the natural rate of interest, r*, and understanding its drivers is key for assessing long-run trends in real interest rates. In turn, this plays a role in assessing the stance of monetary policy. Against this backdrop, we discuss the evolution of real interest rates in Switzerland and present a portfolio of models used by the Swiss National Bank (SNB) to estimate r* as well as investigate its drivers. Moreover, we discuss the implications of the r* estimates for monetary policy. We find that, consistent with the evolution of real interest rates globally and in Switzerland, all model estimates point to a significant decline in r* since the mid-1980s. Also, r* is lower in Switzerland than abroad. Potential output growth as well as global factors related to the demand for and supply of safe and liquid assets (i. e. , the convenience yield) and to demographics (as reflected in the discount factor) appear to be important drivers of the downward trend in r*. However, generally speaking, r* estimates are subject to sizeable model and statistical uncertainty. Concerning policy implications for Switzerland, we argue that while estimates of r* provide an important piece of information for monetary policy, other factors, such as the exchange rate, are also key determinants of monetary conditions for a small open economy such as Switzerland.