DP15579 Uncertainty shocks in currency unions

Author(s): Benjamin Born, Gernot Müller, Johannes Pfeifer
Publication Date: December 2020
Keyword(s): Euro Area, Euro crisis, Exchange Rate Regime, monetary policy, Uncertainty shocks
JEL(s): E44, F41
Programme Areas: International Macroeconomics and Finance, Monetary Economics and Fluctuations
Link to this Page: cepr.org/active/publications/discussion_papers/dp.php?dpno=15579

Uncertainty shocks cause economic activity to contract and more so, if monetary policy is constrained by an effective lower bound on interest rates. In this paper, we investigate whether countries within currency unions are also particularly prone to suffer from the adverse effects of heightened uncertainty because they lack monetary independence. First, we estimate a Bayesian VAR on quarterly time series for Spain. We find that country-specific uncertainty shocks impact economic activity adversely. Second, we calibrate a DSGE model of a small open economy and show that it is able to account for the evidence. Finally, we show that currency-union membership strongly reduces the effects of uncertainty shocks because it anchors long-run expectations of the price level and thus alleviates precautionary price setting in the face of increased uncertainty.