Sciences Po develops an interdisciplinary research program for the evaluation of public policies (in French: Laboratoire interdisciplinaire d’évaluation des politiques publiques, LIEPP), based on four founding units: Department of Economics, Centre de Sociologie des Organisations, Centre...

This short comment provides an assessment on the impact of changing the rules of social security contributions by employers, namely raising the tax base to include not only wages but also value added or capital investments.

This paper provides a summary of the results of a survey on French professional economists on 82 general economic questions, classified in 11 areas : competition policies, trade and globalization, education and human capital, social security and redistribution, tax policy, environment, labor...

Recent theoretical work has examined the spatial distribution of unemployment using the efficiency wage model as the mechanism by which unemployment arises in the urban economy. This paper extends the standard efficiency wage model in order to allow for behavioral substitution between leisure...

This paper adds a land market to a standard Harris-Todaro framework. In the standard model, the equilibrating force that limits rural-urban migration is a decline in the probability of formal employment, which follows from enlargement of the informal sector. The key insight of the present paper,...

The aim of this paper is to explore the structure of cities as a function of labor differentiation, gains to trade, a fixed cost for constructing the transportation network, a variable cost of commodity transport, and the commuting costs of consumers. Firms use different types of labor to...

The paper addresses mainly three questions. One, do workers tend to be employed by employers of the same ethnic group; two, what is the structure of the equilibrium wage contract, and three, do more ethnically homogeneous labor markets tend to have different labor contracts than more ethnically...

Heterogeneous firms facing demand-induced price fluctuations imperfectly compete for heterogeneous workers. It is shown that unemployment may arise in equilibrium because of the combination of uncertainty on product price and mismatch between workers’ skills and firms’ job requirements.

We propose a dynamic efficiency wage model with learning by doing. By taking into account the change inthe stock of workers’ knowledge, firms set efficiency wages such that the effort–wage elasticity is not in general equal to one.