Trinko, a local telecommunications services customer of AT&T, sued Verizon for anti-competitively raising the costs of AT&T, Verizon's rival in the market for local telecommunications services. Pursuant to the rules of the Telecommunications Act of 1996, AT&T was leasing parts of the local...

Technology platforms, such as Microsoft Windows, are the hubs of technology industries. We develop a framework to characterize the optimal two-sided pricing strategy of a platform firm, that is, the pricing strategy towards the direct users of the platform as well as towards firms offering...

The Microsoft cases in the United States and in Europe have been influential in determining the contours of the substantive liability standards for dominant firms in US antitrust law and in EC Competition law. The competition law remedies that were adopted, following the finding of liability,...

I discuss and assess the various standards for establishing liability for loyalty discounts offered under a requirement contract. I find that the standard proposed by the Antitrust Modernization Commission is likely to result in many cases of violation that are not caught. The safe harbor...

See http://www.netinst.org/NET_Working_Papers.html #46

We discuss the benefits of net neutrality regulation in the context of a two-sided market model in which platforms sell Internet access services to consumers and may set fees to content and applications providers “on the other side” of the Internet. When access is monopolized, we find that...

The paper analyzes and compares the investment incentives of platform and application developers for Linux and Windows. We find that the level of investment in applications is larger when the operating system is open source rather than proprietary. The comparison of the levels of investment in...

We discuss salient economic aspects of the Internet, including the possible abolition of net neutrality by local broadband access networks as well as potential incompatibilities and degradation of connectivity in the Internet backbone.

We examine the intersection of patents and antitrust where a patent holder uses the monopoly power it possesses in the market for a patented product to exclude competitors in an adjacent market and attempt to monopolize or monopolize the adjacent market. The present scheme for awarding patents...

We analyze and contrast the US and EU antitrust standards on mixed bundling and tying. We apply our analysis to the US and EU cases against Microsoft on the issue of tying new products (Internet Explorer in the US, and Windows Media Player in the EU) with Windows as well as to cases brought in...