Recent events such as the financial and sovereign debt crisis have triggered an increase in European Economic Policy Uncertainty (EPU). We use a TVP-FAVAR model with hierarchical priors on the hyperparameters to investigate the effect of EPU on a wide range of macroeconomic variables for eleven European Monetary Union (EMU) countries. First, we find that EPU shocks are transmitted through various channels, such as the real options-, the precautionary savings-and the financial channel. Second, we are able to distinguish between a group of fragile countries (GIIPScountries) and a group of stable countries (northern countries), where the former are more strongly affected by EPU shocks. Third, while the IRFs for most variables differ only in magnitude and not in sign between groups of countries, responses of long term interest rates to EPU shocks have a different sign across countries. Fourth, we discover that investors and traders react more sensitively than consumers to uncertainty. Fifth, we find that EPU shocks affect monetary policy decisions. Sixth, we provide evidence that the transmission of EPU shocks is quite stable over time. Finally, the increase in EPU can partly be explained by the state of the European economy and should therefore be treated as an endogenous variable.

We study the impact of Economic Policy Uncertainty (EPU) on the US Economy by using a VAR with time‐varying coefficients. The coefficients are allowed to evolve gradually over time which allows us to discover structural changes without imposing them a priori. We find three different regimes, which match the three major periods of the US economy, namely the Great Inflation, the Great Moderation and the Great Recession. The initial impact on real GDP ranges between −0.2% for the Great Inflation and Great Recession and −0.15% for the Great Moderation. In addition, the adverse effects of EPU are more persistent during the Great Recession providing an explanation for the slow recovery. This regime dependence is unique for EPU as the macroeconomic consequences of Financial Uncertainty turn out to be rather time invariant.

This paper analyzes spillovers and the macroeconomic effects of economic policy uncertainty (EPU) in Europe over the last two decades. Drawing on the newspaper-based uncertainty indices by Baker et al. (2016, Measuring Economic Policy Uncertainty. Quarterly Journal of Economics 131 (4): 1593–1636), we first use the Diebold and Yilmaz (2014 On the Network Topology of Variance Decompositions: Measuring the Connectedness of Financial Firms. Journal of Econometrics 182 (1): 119–134) connectedness index methodology to investigate the static and dynamic patterns of EPU spillovers. We find substantial spillovers across the European countries. Over time, Germany in particular has become increasingly connected to the other economies. In a second step, we investigate the economic impact of EPU shocks using a structural VAR. The detrimental influence of uncertainty turns out to be regime-dependent. We identify a pre-crisis, a crisis and a post-crisis regime, and the effect is only significant in the former two. Finally, the impact of EPU shocks is also heterogeneous across the monetary union’s most important members.

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