Les lois de conservation restent peu utilisees en economie. Cette note offre une nouvelle version du theoreme de Noether adaptee au contrat optimal, methode d'optimisation dynamique la plus souvent retenue en economie theorique. Ce theoreme permet de determiner des quantites invariantes le long...

In this paper we present an optimal growth model with convex-concave technology, for an open developing country. The latter may choose to produce consumption goods by borrowing on capital markets. We prove there exists two non trivial steady states. An optimal path converges either to 0 or to...

Through panel estimates using OECD country-industry statistics, this paper aims to clarify the determinants of rent creation and the mechanisms of rent sharing, and the role of market regulations in these processes. It uses a panel database of 4,136 observations, comprising industry-level data...

Les mesures en faveur de la concurrence pourraient avoir dans les PME un impact contrasté sur leur niveau d’innovation ; cependant, un accompagnement des PME en phase basse de cycle pourrait favoriser leur effort permanent d’innovation.

Advertising and innovation are two engines for firms to escape competition through a better attraction power toward consumers or quality advantage. We propose a model that encompasses both the static and dynamic interactions between R&D, advertising and competitive environment. This model...

This note investigates the effects of the education level, product market rigidities andemployment protection legislation on growth. It exploits macro-panel data for OECDcountries...

This paper investigates the effects of organizational and technological changes on jobstability of different occupational categories in France. We conduct an empirical analysis inwhich we make extensive use of a unique data set on a representative sample of Frenchestablishments...

France has experienced massive changes in its regulation of working time during the last decade. These changes generate natural experiments that may help to study a variety of issues in labor economics, including work sharing effect on job creation or productivity, labor relations or adaptation...

We investigate the impact of new work practices and information and communication technologies (ICT) on working conditions in France. We use a unique French dataset providing information on individual workers for the year 1998. New work practices include the use of quality norms, job rotation,...