This paper shows that a multiple regression with two highly correlated explanatory variables, both of them with a near zero correlation with the dependent variable may correspond to a spurious regression or to a homeostatic model, with estimates highly sensible to outliers. The regression method...

This paper demonstates the existence of a finite set of equilibria in the case of the indeterminacy of linear rational expectations models. The number of equilibria corresponds to the number of ways to select n eigenvectors among a larger set of eigenvectors related to stable eigenvalues. A...

This paper investigates the relevance of the No-Ponzi game condition for public debt (i.e. the public debt growth rates has to be lower than the real interest rate, a necessary assumption for Ricardian equivalence) and of the transversality condition for the GDP growth rate (i.e. the GDP growth...

This paper investigates the identification, the determinacy and the stability of ad hoc, "quasi-optimal" and optimal policy rules augmented with financial stability indicators (such as asset prices deviations from their fundamental values) and minimizing the volatility of the policy interest...

Explanatory variables with simple correlation coefficients with the dependent variable below 0.1 in absolute value (such as aid with economic growth) may have very large and statistically significant estimated parameters in multiple regressions, which are unifortunately "outliers driven" or...

The bargaining power of international banks is currently still very high as compared to what it was at the time of the Bretton Woods conference. As a consequence, systemic financial crises are likely to remain recurrent phenomena with large effects on macroeconomic aggregates. Mainstream...

There are many apparent similarities between the current political and economic situations of France and Italy. The mainstream view is that at least part of the neo-liberal strategy could be a solution to the economic problems of both variants of the European model of capitalism. However, the...

A policy proposal is to abolish the distinction between regular open-end employment contracts and fixed-term contracts and substitute a unique labour contract with a degree of employment protection increasing with tenure. A question on the desirability of the "contrat unique" was included in the...

In this paper, we investigate the microeconomic effects of one major feature of the German Hartz Reforms (2003-2005), namely the reduction in compensation duration for older unemployed above 45 years of age. We look at two potential effects of this measure: on job take-up rates, but also on...