La globalisation et la métropolisation des économies modernes induisent des stratégies de localisation des activités intensives en connaissance en faveur des métropoles et démultiplient les échanges commerciaux et d'information entre les métropoles. Nous étudions, dans ce contexte, le...

Visant à apporter au débat sur l'énergie des bases rigoureuses, ce papier effectue une mise au point concernant la place réelle du nucléaire dans la satisfaction des besoins énergétiques de la France. Les résultats sont basés sur une analyse détaillée du bilan énergétique 2009, qui...

This paper deals with the problem of estimating the level sets of an unknown distribution function $F$. A plug-in approach is followed. That is, given a consistent estimator $F_n$ of $F$, we estimate the level sets of $F$ by the level sets of $F_n$. In our setting no compactness property is a...

Un différentiel de prix de 20% entre marques nationales et marques de distributeurs est généralement affirmé dans la littérature. Nous montrons que l'évolution globale du différentiel au cours des dernières années remet en cause cette affirmation, et l'expliquons par la combinaison du...

Should education become more vocational or more general? We address this question in two steps. We first build and solve a two-sector matching model with generalists and specialists. Generalists pursue jobs in both sectors; however, they come second in job queues. Specialists seek for jobs in a...

In this paper we consider a simple model of horizontal differentiation and derive the closed form solutions for the level of the variables in the decentralized economy and in the social planner case. This enables us to analyze consumers' welfare as a function of the parameter representing market...

In hedonic housing models, the spatial dimension of housing values are traditionally processed by the impact of neighborhood variables and accessibility variables. In this paper we show that spatial effects might remain once neighborhood effects and accessibility have been controlled for. We...

In this paper, we propose a simple way to compute the Gini index when income y is a finite order k polynomial function of its rank among n individuals.

We consider pure-jump transaction-level models for asset prices in continuous time, driven by point processes. In a bivariate model that admits cointegration, we allow for time deformations to account for such effects as intraday seasonal patterns in volatility, and non-trading periods that may...

This paper examines the link between health inequalities, air pollution and political institutions. In health economics literature, many studies have assessed the association between environmental degradation and health outcomes. This paper extends this literature by investigating how air...