This article deals with the impact of legislation in the seed sector on incentives for variety creation. The first category of rules consists in intellectual property rights and is intended to address a problem of sequential innovation and R&D investments. The second category concerns commercial...

This book contributes fresh theoretical and empirical evidence on competitiveness and growth in connection with the commitment made by European leaders at the Lisbon Summit in 2000 to ‘render the European Union the most competitive and dynamic knowledge based economy in the world by 2010,...

This article deals with the incidence of consumers? heterogeneity on the formation of hedonic price functions with a focus on the emergence of market segmentation. Two major points are outlined: (i) in the presence of group-wise heterogeneity, consumers are endogenously gathered on intervals of...

The article highlights the role of heterogeneity in the formation of hedonic prices. The article distinguishes between continuous and groupwise heterogeneity. The distinction helps understanding two important points. First, the analysis of market equilibrium with groupwise heterogeneity makes...

The Arrow and Fisher [1974] model of environmental preservation with irreversibility and uncertainty is reconsidered in the perspective of the real option theory. Thanks to this approach, an extension of the model to the continuous time case with a partial exploitation of non renewable resources...

This article deals with the impact of legislation in the seed sector on incentives for variety creation. The first category of rules consists in intellectual property rights and is intended to address a problem of sequential innovation and R&D investments. The second category concerns commercial...

This article deals with the impact of legislation in the seed sector on incentives for variety creation. Two categories of rules interact. The first category consists in intellectual property rights and is intended to address a problem of sequential innovation and R&D investments by the private...

[fre] Le modèle de l’électeur médian postule que l’offre de bien public est déterminée par la demande de l’électeur médian, supposé décisif lors des élections. L’article propose deux nouveaux tests de cette hypothèse sur les villes de plus de 10 000 habitants en France. Pour...

We investigate how emission abatement and technological innovation provide different solutions to reduce pollutant emissions. In the case of a stock externality emission abatement leads to a smooth and continuous adjustment of emissions. Conversely, technological innovation has to be interpreted...