En situation de concurrence pure et parfaite, les décisions par les entreprises de quantité produites et d’utilisation des facteurs s’effectuent en égalisant le prix du marché de bien final avec le coût marginal. En situation de concurrence imparfaite, cette égalisation n’est plus...

We examine the relationship between the characteristics of the firms' knowledge base in terms of knowledge capital and knowledge integration and the stock market value of 84 firms active in biotechnology during the 1990s. Panel data regression models show that the degree of knowledge integration...

This paper presents a method by which patent statistics can be used to study the organisation of competencies within firm. We argue that knowledge is heterogeneous because it refers to scientific disciplines and technologies. One must therefore account for how technologies relate to one another...

This paper analyses post-entry and pre-exit performance of French firms using a dataset covering 14 manufacturing industries over the period 1990-2002. The main focus is on market selection mechanisms looking at total factor productivity levels of entrants and exitors relative to incumbent...