Empirical data suggest that new firms tend to grow faster than incumbent firms in terms of their productivity. A sticky-price model with learning-by-doing in new firms fits this data and predicts that for plausible calibrations, the optimal long-run inflation rate is positive and between 0.5%...

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...

We examine how borrowing constraints affect monetary transmission and the trade-off of a welfare maximizing central bank. We develop a sticky price model where money serves as the means of payment and ex-ante identical agents borrow/lend among each other. The credit market is distorted as...

The design and analysis of optimal monetary policy is usually guided by the paradigm of homogeneous rational expectations. Instead, we examine the dynamic consequences of implementation strategies, when the actual economy features expectational heterogeneity. Agents have either rational or...

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...

We use a microfounded dynamic stochastic general equilibrium (DSGE) model with banks to study interactions between monetary and macroprudential policies in a small open economy. The model is calibrated/estimated for Korea. Cooperation of monetary and macroprudential policies is optimal under a...

This paper estimates the effects of monetary policy on the UK economy based on a new, extensive real-time forecast data set. Employing the Romer Romer identification approach we first construct a new measure of monetary policy innovations for the UK economy. We find that a one percentage point...

We assess whether euro area inflation expectations, as measured by break-even inflation rates (BEIRs), have remained anchored during the financial crisis. Since autumn 2008, the volatility of BEIRs has increased considerably. We treat observed BEIRs as a sum of `genuine BEIRs' and additional...