We suggest a model of innovation and diffusion of a new technology in which two firms, one innovative and one non-innovative, undertake risky activities that are regulated by liability rules. One originality of this study is to consider the presence of a “double-impact” innovation, impacting...

This paper contributes to the analysis of the effects of demand structure on longterm growth. Introducing non-homothetic preferences in an otherwise standard quality- model, we first show that disparities in purchasing power generate positive R&D investment by quality leaders. This result is...

This article aims to test the relevance of learning through Genetic Algorithms, in opposition with fixed R&D rules, in a simplified version of the evolutionary industry model of Nelson and Winter. These two R&D strategies are compared from the points of view of industry performance (welfare) and...