Antitrust authorities consider commodity bundling as an extension of monopoly power to other markets which harms consumers. This paper analyzes quality competition and its effect on consumer surplus for the case of commodity bundling by a multi-product firm in a vertically differentiated...

In order to analyze the optimal degree of privatizing an upstream public firm, this paper sets up a vertically related market that consists of an upstream mixed oligopoly with one public firm and m private firms and a downstream oligopoly with n private firms. The major findings of this paper...