In this paper we analyze whether the effect of fiscal policy differs across the business cycle. To tackle this question, we use a regime-switching error-correction framework, where nonlinearities are only modeled in the short-run and have no impact on the long-run equilibrium. Regime specific...

This paper analyzes optimal monetary and fiscal policy in a monetary union from a union-wide perspective, using a multi-country New Keynesian business-cycle model with rigid real wages. Fiscal policy is implemented at the country level through decisions regarding government spending, while the...

Shrinkage estimators of the covariance matrix are known to improve the stability over time of the Global Minimum Variance Portfolio (GMVP), as they are less error-prone. However, the improvement over the empirical covariance matrix is not optimal for small values of n, the estimation sample...

Abstract In this paper, we estimate fundamental bilateral real exchange rates for a group of eight accession countries using a panel-cointegration approach for the period 1993-2003. We document a significant positive link between productivity levels and the corresponding real exchange rate...

This paper investigates whether technology spills over across national borders and technology regimes. We advocate a modeling strategy where changes in technical efficiency capture technology spillovers as industries absorb and implement the best-practice (frontier) technology. Recently...

This article provides new evidence on the nature of occupational differences in unemployment dynamics, which is relevant for the debate between the structural or hysteresis hypotheses. We develop a procedure that permits us to test for the presence of a structural break at unknown date. Our...

This paper investigates the sources of disturbances that caused the conjonctural breakdowns in the early 90's, in France, in the United States, in the United Kingdom and germany, through a V.E.C.M. on contributions to growth.