We investigate the effects of uncertainty shocks on unemployment dynamics in the post-WWII U.S. recessions via non-linear (Smooth-Transition) VARs. The relevance of uncertainty shocks is found to be much larger than that predicted by standard linear VARs in terms of i) magnitude of the reaction...

We estimate nonlinear VARs to assess to what extent fiscal spending multipliers are countercyclical in the United States. We deal with the issue of nonfundamentalness due to fiscal foresight by appealing to sums of revisions of expectations of fiscal expenditures. This measure of anticipated...

We employ a nonlinear VAR to document the asymmetric reaction of real economic activity to uncertainty shocks. An uncertainty shock occurring in recessions triggers an abrupt and deep drop followed by a quick rebound and a temporary overshoot. The same shock hitting in expansions induces a...

This paper investigates inflation dynamics in a panel of 20 OECD economies using an approach based on the sample autocorrelation function (ACF). We find that inflation is characterized by long-lasting fluctuations, which are similar across countries and that eventually revert to a potentially...

The relationship between fiscal and financial euro area indicators and sovereign yield spreads has changed after the start of the financial crisis. Increased financial volatility has magnified the impact of fiscal conditions as drivers of sovereign risk, has widened the set of macroeconomic...

We propose a novel robust test to assess whether an estimated new-Keynesian model is consistent with a unique stable solution, as opposed to multiple equilibria. Our strategy is designed to handle identification failures as well as the misspecification of the relevant propagation mechanisms. We...

We propose a novel identification-robust test for the null hypothesis that an estimated new-Keynesian model has a reduced form consistent with the unique stable solution against the alternative of sunspot-driven multiple equilibria. Our strategy is designed to handle identification failures as...

We employ a novel identification scheme to quantify the macroeconomic effects of monetary policy shocks in the United States. The identification of the shocks is achieved by exploiting the instabilities in the contemporaneous coefficients of the structural VAR (SVAR) and in the covariance matrix...

This paper re-examines the VAR evidence on the price puzzle and proposes a new theoretical interpretation. Using actual data and two identification strategies based on zero restrictions and model-consistent sign restrictions, we find that the positive response of prices to a monetary policy...

This paper re-examines the empirical evidence on the price puzzle and proposes a new theoretical interpretation. Using structural VARs and two different identification strategies based on zero restrictions and sign restrictions, we find that the positive response of price to a monetary policy...