This Paper uses monthly data from a differentiated market dominated by a duopoly to analyse the nature of interactions between competitor firms. The incumbent, Canal Satellite, and the entrant, TPS, have dominated the French satellite pay-TV market, characterized by a monopoly until the end of...

This Paper provides an empirical examination of third-degree price discrimination in the Swedish newspaper industry. The results show that price discrimination is more prevalent in competitive markets and among newspapers with low market shares. This supports predictions from recent theoretical...

Reducing fixed cost duplication - a common justification for concentrated market structure - motivated the US government to relax the number of radio stations a firm could operate in any local market. After deregulation the number of firms per market decreased. The implied cost saving depends on...