Claude Crampes

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The question addressed by the paper is whether standard procedures and widely accepted insights of competition policy remain valid when one deals with potentially anti-competitive conduct in innovative industries. The question of appropriateness arises because competition in these industries displays features that are radically different from those(More)
In Europe and in Japan, patent applications are publicly disclosed after 18 month from the filing date regardless of whether a patent has been or will be registered. In the U.S. in contrast, patent applications are publicly disclosed only when a patent is granted. In this paper we examine the consequences of this difference for (i) firm’s R&D and patenting(More)
A patent is not a perfect protection against imitation. It only grants the patentholder the right to sue intruders once they have been identified. This implies that the patentholder must supervise the market and react in case of infringement. His reaction may be to go to court, to settle an agreement or to accept the entry. We investigate how intensive the(More)
Several studies have compared the efficiency of publicly and privately owned water utilities and reached conflicting conclusions on the impact of ownership on efficiency. This article provides further evidence by estimating a stochastic cost frontier for a sample of Asian and Pacific regional water companies. The results show that efficiency is not(More)
We analyze a two-stage game where capacity constrained electricity generators first choose how much capacity they make available and then compete in a uniform price auction. We study how capacity withholding can be used strategically to enforce market power and how uniform auctions in the price game change the results of capacity constrained competition(More)
This paper presents a model of media competition with free entry when media platforms are …nanced both from advertising receipts and customers’ subscriptions. We establish a relationship between the equilibrium levels of prices, advertising and entry, the welfare maximizing levels, and the advertising technology. Under constant or increasing returns to(More)
  • Theon van Dijk, Patrick Van Cayseele, +4 authors Eric de Laat
  • 1996
The stringency of novelty requirements that patent offices and courts use in judging infringement issues and patentability of inventions defines the height of protection provided to a patentholder. In this paper the effects of patent height are studied in a duopoly where firms compete in product improvements. Minimal steps of improvements, determined by the(More)
This paper presents a patent choice model allowing strategic decisions in a sequential game with two agents: a patentholder, who knows the characteristics of the market, and a potential entrant who has imperfect information about the value of demand. We study several Perfect Bayesian Equilibria. We find equilibria where the incumbent prefers not to pay the(More)