With the Federal Funds rate approaching the zero lower bound, the U.S. Federal Reserve adopted a range of unconventional monetary policy measures known as Quantitative Easing (QE). Quantifying the impact QE has on the real economy, however, is not straightforward as standard tools such as VAR...

In this paper we present a simple framework to model central bank forward guidance in a liquidity trap. We analyze the role of long-run and short-run price stickiness under discretion and commitment in a straightforward and intuitive way. Despite the impact of price rigidity on welfare being...

Deviations of policy interest rates from the levels implied by the Taylor rule have been persistent after the turn of the century even before the financial crisis. These deviations could be due to lower real interest rates, as stated by the savings glut hypothesis as well as the apparent success...

Central Bankers are currently facing big challenges in designing and implementing monetary policy, as well as with safeguarding financial stability, with the world economy still in the process of digesting the legacy of the crisis. The crisis has changed central banking in many ways: by shifting...

In this paper, we analyse nominal exchange rate and price dynamics after risk shocks with short-term interest rates constrained by the zero lower bound (ZLB). We show with a stylized theoretical model that temporary risk shocks may lead to permanent shifts of the exchange rate and the price...

Apart from a priori assumptions on instantaneous or long run effects of structural shocks, sign restrictions have become a prominent means for structural vector autoregressive (SVAR) analysis. Moreover, second order heterogeneity of systems of times series can be fruitfully exploited for...