The purpose of this paper is to present an approach with regard to the dynamic process of the general equilibrium during the business cycle fluctuations following monetary and fiscal interventions, which, I think, could contribute to bridging the differences between the different schools of...

DSGE-models have become important tools of analysis not only in academia but increasingly in the board rooms of central banks. The success of these models has much to do with the coherence of the intellectual framework it provides. The limitations of these models come from the fact that they...

The recent global financial crisis illustrates that financial frictions are a significant source of volatility in the economy. This paper investigates monetary policy stabilization in an environment where financial frictions are a relevant source of macroeconomic fluctuation. We derive a measure...

This paper outlines the three-country New Keynesian Dynamic Stochastic General Equilibrium model of the National Bank of Belgium. The model is named BEMGIE for Belgian Economy in a Macro General and International Equilibrium model. It features imperfect market competition, standard real and...

We develop a search-matching model, where firms search for customers (e.g. in form of advertising). Firms use long-term contracts and bargain over prices, resulting in a price mark up above marginal cost, which is procyclical and depends on firms' relative bargaining power. Product market...

This note studies the inflation-uncertainty relationship in a New Keynesian framework. Inflation in these models can be expressed as the discounted sum of current and expected future real marginal costs. The main point of this note is to highlight that real marginal costs in general equilibrium...

This paper compares Taylor-style staggered price setting to partial adjustment of prices (or Calvo staggering) in a small optimizing IS/LM model. In contrast to the overwhelming perception in the literature, the models are not similar for most parameterizations. In particular, the dynamic...

This paper emphasizes the notion that model features that contribute to endogenous price rigidity under staggered price setting lower the elasticity of marginal cost with respect to output, and these same model features tend to generate equilibrium indeterminacy, or "sunspot fluctuations," under...

This paper investigates the dynamics of output, employment and prices in an economy with costs of adjusting labor and prices. In an economy with non-convex adjustments costs, firms do not adjust labor and prices continuously to accommodate every shift in demand. Rather, firms adjust employment...

Fiat money requires no backing to be accepted at a uniquely determined positive value. I show this using an equilibrium model with realistic frictions and rational households allowed to freely interact in a competitive environment. The model portrays a modern 'cashless' economy relying on...