The Phillips curve has flattened out over the last decades. We develop a model that rationalizes this phenomenon as a result of the observed increase in polarization in many industries, a process along which a few top firms gain an increasing share of their industry market. In the model, firms...

We analyse the incidence of endogenous entry and firm TFP-heterogeneity on the response of aggregate inflation to exogenous shocks. We build up an otherwise standard DSGE model in which the number of firms is endogenously determined and firms differ in their steady state level of productivity....

This paper presents US and euro area estimates for a fully heterogeneous model, in which there is a continuum of firms setting prices with a constant probability of adjustment, which may differ from firm to firm. The estimated model accurately matches the empirical distribution function of...

we analyse the impact of fiscal policy shocks in the euro area as a whole, using a newly available quarterly dataset of fiscal variables for the period 1981-2007. to allow for comparability with previous results on euro area countries and the us, we use a standard structural var framework, and...

The issue of the size of fiscal spillovers in the euro area has gained prominence recently, given proposals to coordinate fiscal policies that aim at achieving an appropriate “aggregate fiscal stance”, consistent with economic and monetary policy conditions. Given the heterogeneous fiscal...

We assess the effects of the ECB's recent unconventional monetary policy measures by estimating a global VAR that exploits panel variation among all euro area economies and explicitly takes into account cross-country interdependencies. Unconventional monetary policy measures have beneficial...

The paper reviews the economic risks associated with regimes of high public debt through DSGE model simulations. The large public debt build-up following the 2009 global financial and economic crisis acted as a shock absorber for output, while in the recent and more severe COVID19-crisis, an...

This paper shows that the standard Calvo model clearly fails to account for the distribution of price durations found in micro data. We propose a novel price setting model that fully captures heterogeneity in individual pricing behavior. Specifically, we assume that there is a continuum of firms...

We develop a new monthly indicator of supply bottlenecks using newspaper articles. The supply bottlenecks index (SBI) provides a consistent narrative of supply issues related to wars, natural disasters, strikes and, most recently, the COVID-19 pandemic. Innovations in the SBI have important...

This paper analyzes the determinants of Spain's macroeconomic fluctuations since the inception of the euro in 1999, with a special attention to observed growth and inflation differentials with respect to the rest of the European Monetary Union (EMU). For that purpose we estimate the Banco de...