In this issue:
Competition authorities are looking hard at the economic theories that underlie the empirical analysis they use when evaluating mergers. With their recent merger guidelines, both the EC and U.S. competition authorities have introduced new methodology and emphasis—raising a lively debate in the process. This issue looks at the state of the art in merger analysis, seeking to answer the question: Just what are the best tools to use to predict the competitive effects of mergers?
What’s Up With Merger Analysis?
The analytical core of the new Guidelines relies on an assumption that was long ago shown to be invalid. Michael G. Baumann (Economists Inc.) & Paul E. Godek (Compass Lexecon)
Discussing some of the theoretical and empirical strengths and weaknesses of the approaches to antitrust analysis, including a critique of some of the recent methods. Dennis Carlton (Univ. of Chicago)
Our work extends existing first-order approaches to merger analysis to provide quantitative estimates of price and consumer surplus changes. Sonia Jaffe & E. Glen Weyl (Harvard Univ.)