We examine how allowing individuals to emigrate to pay lower taxes abroad changes the optimal non-linear income tax scheme in a Mirrleesian economy. An individual emigrates if his domestic utility is less than his utility abroad net of migration costs, utilities and costs both depending on...

This paper presents a general procedure inspired by the Shapley value for decomposing any inequality indices by factor components or by sub-populations. To do so we define an inequality game. Despite the fact that the characteristic function is not super-additive in general and that the...

Among inequalities in health, those which are explained by circumstances during childhood or parents' characteristics are recognized as inequalities of opportunities in health and are considered as the most unfair. Tackling health inequalities in later life and improving the underlying...

We investigate the problem of how to perform comparisons of income distributions across families of different sizes. We argue that social welfare ought to be computed as the average individual utility instead of the average household utility as in most known criteria. We provide dominance...

We investigate how the optimal nonlinear income tax schedule is modified when taxpayers can evade taxation by emigrating. We consider two symmetric countries with Maximin governments. Workers choose their labor supply along the intensive margin. The skill distribution is continuous, and, for...

The paper investigates the link between the over-exposure of African immigrants to unemployment in France and their under-representation in jobs in contact with customers. We build a two-sector matching model with ethnic sector-specific preferences, economy-wide employer discrimination, and...

We characterize the set of second-best optimal "menus" of student-loan contracts in a simple economy with risky labour-market outcomes, adverse selection, moral hazard and risk aversion. The model combines student loans with an elementary optimal income-tax problem. The second-best optima...

We derive testable conditions ensuring that the income tax is optimal when agents are ex-ante identical but face idiosyncratic income risk. The optimal tax depends positively on both absolute risk aversion and risk variance and negatively on labor supply elasticity and absolute prudence. The...

Nous cherchons à mesurer l'impact de l'article 55 de loi SRU sur la production effective de logements sociaux, en utilisant plusieurs méthodes contrefactuelles (Double Différence, Double Changement) et en les confrontant à une nouvelle méthode qui utilise uniquement l'information passée...

Cette étude s'intéresse à l'effet du dispositif dit "Scellier" d'aide à l'investissement locatif privé sur le prix des terrains à bâtir. Notre méthode d'évaluation se situe dans le cadre de l'évaluation contrefactuelle d'une politique publique développée par Rubin. Nous mettons en...