E-commerce may prove a double-edged sword for antitrust enforcement. While the internet massively increases the potential size of the relevant market for any antitrust investigation, thereby reducing the need for antitrust activity, it also opens firms up to protectionist uses of antitrust by...

We consider innovation incentives in markets where final goods comprise two strictly complementary components, one of which is monopolized. We focus on the case in which the complementary component is competitively supplied, and in which innovation is important. We explore ways in which the...

We discuss issues of the application of antitrust law and regulatory rules to network industries. In assessing the application of antitrust in network industries, we analyze a number of relevant features of network industries and the way in which antitrust law and regulatory rules can affect...

A number of private colleges and universities have chosen not to compete for students by offering merit-based financial aid. In addition, until 1990 many of these schools jointly calculated a student's financial need. I theoretically and empirically analyze the effects of different financial aid...

Comment of Nicholas S. Economides on the Revised Proposed Final Judgment in United States v. Microsoft

The ''portfolio effect theory'' developed by the European Commission in merger control is at the center of a fierce international row with the US authorities who believe that this theory has no economic foundations. This paper aims to provide a counter-argument and shows that full-line forcing...

This paper examines the current conditions in the US telecommunications sector (October 2002). We examine the impact of technological and regulatory change on market structure and business strategy. Among others, we discuss the emergence and decline of the telecom bubble, the impact on pricing...

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The Microsoft antitrust case focused public attention on the role of antitrust enforcement in preserving the forces of innovation in high-technology markets. Traditionally, regulators focused on whether companies artificially hiked prices or reduced output. Now, they're increasingly likely to...

This paper presents empirical evidence regarding the effect of simultaneous antitrust and trade policy on productivity. We find that treating antitrust across countries as an exogenous policy overestimates the impact of competition on productivity by as much as 18%.