This paper studies the development of outsourcing behaviour of industrial French enterprises between 1984 and 2000. The database is the enterprises annual survey which deals with individual data about French enterprises. The «make or buy» behaviour is of great concern in the theoretical...

The question concerning the domain covered by enterprise governance has not been definitely settled and neither has the question of the dividing line between governance and leadership. Thus, the real issue is the interpretation of governance to-day. Does it have to be confronted with that other...

This paper studies the interactions between the centralization in wage bargaining and the consequences of public employment for labour market performance. We use a monopoly union model and focus on the fiscal externalities of the wage setting process. Our model suggests that public jobs crowd...

A pure hedonic game describes the situation where player's utility depends only on the identity of the members of the group he belongs to. The paper provides a necessary and sufficient condition for the existence of core-partition in hedonic games. The condition is based on a new concept of...

This paper deals with the existence of marginal pricing equilibria when it is defined by using a new and tighter normal cone introduced by B. Cornet and M.O. Czarnecki. The main interest of this new definition of the marginal pricing rule comes from the fact that it is more precise in the sense...

We study, in a simple model, the partial equilibrium of an industry with n firms endowed by different technologies which have different pollution effects. The price of input (labour) and the demand curve to the industry are given. Pollution is restricted by a tradable market of permits in the...

This article deals with microeconomics foundations of the knowledge of economy and distinguishes several ways for knowledge generation. For a long time economic analysis have assimilated knowledge and information. Today it is different but relations between concepts are not totally analysed. For...

In the framework of a vertical differentiation model where consumers are continuously distributed with respect to their intensity of preference for quality and their income, we study the optimal strategy of a natural monopoly : how many qualities to produce ? Which qualities should be produced?...

In respect to GHG emission reduction targets set in the Kyoto Protocol in 1997, an emission quotas trading system will be implemented among the Annex-1 participating countries to lower the mitigation costs of the international cooperation on climate change issue. Nonetheless, in the way the...

Ever since the Creation of the stock exchange, scientists have tried to endow them with a theoretical representation. Mathematicians endeavoured to demonstrate that the Gaussian character of financial markets should by necessity neutralise any speculative temptation. Astrophysicists went further...