This paper examines the relationship between changes in telecommunications provider concentration on international long distance routes and changes in prices on those routes. Overall, decreased concentration is associated with significantly lower prices to consumers of long distance services.

Research joint ventures may coordinate research investments or improve research sharing. When research joint venture partners only share R&D results, large consortia are more profitable than small ones, and joint ventures prefer their rivals dispersed. According to a coalition formation game, an...

This article offers a comprehensive recapitulation of the relevant economics and case law on demand elasticities and makes some efforts toward rapprochement. The primary purpose is to make the relevant economicanalysis readily available to non-economists concerned with antitrust law, but some of...

This paper considers a potential entrant that cannot enter without paying an avoidable cost and cannot commit toi that until after incumbent firms have committed to their output.