[fre] Cet article présente des éléments d'analyse dérivés de la théorie de l'organisation industrielle qui éclairent le développement récent des activités économiques sur Internet. L'exposé présente de façon synthétique une partie du matériel développé plus en détail dans...

Participants in a market, buyers and sellers, may need the service of an intermediary who will put them into contact and give them information about their potential trading partner. The intermediary chooses what price it will charge to each side to have access to its service. It also chooses...

This article presents some pieces of analysis derived from the theory of industrial organisation that shed light on the recent development of electronic commerce on Internet. Classification JEL : L 86

This article presents some pieces of analysis derived from the theory of industrial organisation that shed light on the recent development of economic activities on Internet. The survey draws in a synthetic way from material exposed more extensively in Gaudeul-Jullien [2000], concerning online...

L'exposé présente un certain nombre d'éléments expliquant pourquoi les activités se développant sur le Net ne peuvent pas être bien appréhendées dans un contexte de concurrence parfaite, et discute la nature des barrières à l'entrée. Nous verrons que l'essentiel des changements...

The World Wide Web was originally a totally English-based medium due to its US origin. Although the presence of other languages has steadily risen, content in English is still dominant, which raises a natural question of how bilingualism of con- sumers of a home country a¤ects production of web...

We analyze early contracting when a seller has private information on the future gains from trade and the buyer can bypass. Despite ex-post trade occurring under complete information and being efficient, early negotiation with an informed seller allows the uninformed buyer to improve her...

Platforms use search diversion in order to trade off total consumer traffic for higher revenues derived by exposing consumers to unsolicited products (e.g. advertising). We show that the entry of a platform competitor leads to higher (lower) equilibrium levels of search diversion relative to a...