We identify an inflationary technology news shock as the leading source of business cycle variations for the postwar U.S. economy. This shock acts like a demand shock: it induces strong positive comovement in real quantities - GDP, consumption, investment - and weak positive comovement between...

We use a standard quantitative business cycle model with nominal price and wage rigidities to estimate two measures of economic ineffciency in recent U.S. data: the output gap - the gap between the actual and effcient levels of output - and the labor wedge - the wedge between households'...

How do aggregate quantities at the business cycle frequency respond to shocks to the spread between residential mortgage rates and government bonds? Using a structural VAR approach, we find that mortgage spread shocks impact the real economy by both economically and statistically significant...

Milton Friedman, one of greatest economists of all time, died on November 16, 2006 at age 94. He was famous for his conclusion that “inflation is always and everywhere a monetary phenomenon,” and for the related notion that ultimately the only thing a central bank, such as the Federal...

We explore the implications of endogenous firm entry and exit for business cycle dynamics and optimal fiscal policy. We first show that when the firm exit rate is endogenous, negative technology shocks lead to reductions in the number of firms. Technology shocks therefore have additional effects...

The paper provides an alternative view to the Real and New Keynesian business cycle theories. The paper focuses on the combination of both real and nominal variables in explaining the cyclical movements of business cycles. We propose using Vector Autoregressive (VAR) technique on the production...

In this paper we develop a dynamic stochastic general equilibrium (DSGE) model for an open economy, and estimate it on Euro area data using Bayesian estimation techniques. The model incorporates several open economy features, as well as a number of nominal and real frictions that have proven to...

In this paper I address the following questions. - Has the business cycle become longer and shallower? And why? - How stabilizing is monetary policy. In answering these questions I summarize recent research undertaken by Adrian Pagan and myself that formalizes the procedures developed by Burns...

This paper develops an open economy portfolio balance model with endogenous asset supply. Domestic producers finance capital goods through credit and bonds in accordance with debt capital costs as well as through equity assets. Private households hold a portfolio of domestic and foreign assets,...

The launch of the euro has fed doubts concerning the constitution of an optimal European monetary zone. Indeed, the differences in legal, institutional and cultural frameworks… as well as the diversity of the productive and financial European systems may have led to the idea that Europe does...