As part of the Modification of Final Judgment (MFJ) that implemented the divestiture of the Bell operating companies (BOCs) from AT&T on January 1, 1984, the BOCs were forbidden to carry telephone calls from one local access and transport area LATA) to another. Although the Telecommunications...

This paper analyzes the competitive effect of a new product introduction. We break the overall competitive effect into two parts: the effect on the prices of existing products due to increased competition, and the effect of having additional product variety. Using data from both before and after...

The 1992 Horizontal Merger Guidelines, issued by the U.S. Department of Justice (DOJ) and the Federal Trade Commission (FTC), suggest that relevant markets for merger analysis may be defined for classes of customers on whom a hypothetical monopolist of the merging firms' products would likely...

In this paper, we discuss the econometric models put forward by both sides in the FTC v. Staples case and explore why those models canceled each other out, leaving the documents to play a central role in the court's decision

The recent Baidu Inc. decision provides insight into how Chinese courts might apply antitrust principles and assess evidence in private antitrust litigation in the future. As in the U.S., the Baidu court appears to have been interested in rigorous economic analysis of the antitrust allegations

The US Department of Justice and Federal Trade Commission receive notification regarding thousands of mergers per year, and must identify, from the entire set of mergers, those that require further investigation. Merger screens are critical to efficient and effective merger enforcement policy,...