This paper studies the welfare consequences of a vertical merger that raises rivals' costs when downstream competition … is à la Cournot between firms with constant asymmetric marginal costs. The main result is that such a vertical merger can …, that this result extends to price competition with differentiated products. …

This paper develops a fairly general model of platform competition in media markets allowing viewers to use multiple … platforms. This leads to a new form of competition between platforms, in which they do not steal viewers from each other, but … competition "either or both." A central result is that platform ownership does not affect advertising levels, despite nontrivial …

How does demand uncertainty affect entry into skill-based competition? I investigate this question in a market entry …

regulation in Portugal / João Castro and Agostinho Franco -- 4. Competition through downstream access in the UK postal sector … of postal services / Philippe De Donder ... [et al.] -- 11. Postal price elasticities and intermedia competition : a … processing operations / A. Thomas Bozzo -- 16. Do differences in facility-specific mail processing unit costs have implications …