the “tragedy” and the lack of competition which might exist in an integrated market structure. In this paper we analyze … competition, lowers prices and enhances consumer surplus. However, when quality leadership is shared, “disintegrating” firms may …

of all purchasing costs, than duopoly. This implies that in the process of opening a monopolistic market to competition …

pricing, introductory offers, and price wars. Such “competition for the market” or “life-cycle competition” can adequately … replace ordinary compatible competition, and can even be fiercer than compatible competition by weakening differentiation …. More often, however, incompatible competition not only involves direct efficiency losses but also softens competition and …

analyze the structure of competition and industry implications in terms of pricing, sales, profitability, and social welfare …

social welfare between fixed-mobile intermodal competition, fixed perfect competition and mobile perfect competition indicate … that the fixed-mobile intermodal competition leads to a higher level of social welfare … competition based on mobility and data volume between fixed and mobile broadband access. By the description of asymmetrical …

equilibrium, then the retail price is always higher and the social welfare lower in the competitive case, which exists only if …

monopoly because each duopolist has a smaller market size than the monopolist. But social welfare in the monopoly is lower than … in the duopoly. In comparison with uniform pricing, two-part tariffs tend to have lower prices, more profits and welfare …

This paper discusses the economics of the Internet backbone. I discuss competition on the Internet backbone as well as … relevant competition policy issues. In particular, I show how public protocols, ease of entry, very fast network expansion … large web site to multiple ISPs (customer multi-homing) enhance price competition and make it very unlikely that any firm …