Two extensions of a parametric model are proposed, each one involving the score function of an alternative parametric model. We show that the encompassing hypothesis is equivalent to standard conditions on the score of each of the extended models. The condition on the first extension gives rise...

One of the important tools of the business cycle research are the signal-extraction techniques (SETs). They allow to study both the stylized facts and the turning points of the business cycles. However, these are highly sensitive to the SETs. In this paper we try to see how some of the SETs...

L’objet de cet article est d’analyser l’effet de la corruption sur la mobilisation des recettes publiques. Une analyse économétrique sur données de panel (125 pays et couvrant la période 1980-2002) permet de ne pas rejeter l’hypothèse d’un effet négatif de la corruption sur les...

Dixit’s 1975 paper ‘Welfare Effects of Tax and Price Changes’ cosntitutes a seminal contribution to the theory of tax reform analysis within a second-best general equilibrium framework. The present paper clarifies ambiguities with respect to normalisation which have led to...

The purpose of this paper is to investigate the effect of privatization in a mixed duopoly, where a private firm complete in quantities with a welfare-maximizing public firm. We consider two inefficiencies of the public sector : a possible cost inefficiency and an allocative inefficiency due to...

Should income transfers be conditional upon personal characteristics of the potential recipients (the so-called “tagging”) or should they only be tied to reported incomes ? This question is addressed in a partial equilibrium setting distinguishing two types of jobs and a distribution of...

This paper develops a dynamic general equilibrium model of a unionized economy to analyze the impact of unconditional basic income schemes on unemployment. Starting from a given level of the unemployment benefits, two reforms are envisaged : one where these benefits are replaced by a higher...

Reductions of social security contributions (RSSC) and a basic income (BI) (or the related Negative Income Tax) are considered in a dynamic general equilibrium framework with imperfect competition on the labour market (the ‘wage-setting/price-setting’ model). The cases with homogeneous and...

This paper provides the first political economy model in which self-interested natives decide when voting rights should be granted to foreign-born workers. This choice is driven by the maximization of th net gains from immigration. We focus on the provision of a public good : immigrants could...

Cet article propose une analyse économique de la sécession. Il s'inspire des travaux d'Alesina et Spolaore (1997), de Berkowitz (1997) et de Bolton et Roland (1997). Le raisonnement mené au niveau des Etats est largement transférable aux collectivités locales (régions, villes,...). Le...