This paper explores the use of collusion theories in merger analysis at the Federal Trade Commission. The 1992 Merger Guidelines focuses on unilateral effect, relegating collusion analysis to a second tier theory. Both structural and behavioral conditions conducive to establishing or maintaining...

Most mergers filed at the enforcement agencies are conglomerate in nature with only minor horizontal overlaps. An enforcement agency may challenge the merger, if any overlap is believed to be adversely affected by the transaction. While the merging firm is entitled to a hearing in federal court,...

Most mergers involve multiple markets. The potential for settlement can vary by the fraction of the overall deal attributable to the markets of concern. (i.e., by the “overlap”). If an antitrust agency challenges a merger having only a small overlap, negotiating a settlement is very likely;...

The 2010 Merger Guidelines define an improved road-map for merger analysis. Evidence is elevated to a position of prominence in Section II of the revised draft, although we note that the presentation lacks the necessary context. Economic theory now plays a larger role in the analysis, a change...

The Hart Scott Rodino program, coupled with the modern Merger Guidelines has structured merger enforcement for the last twenty years. This paper reviews all of the filings on which the Commission issued a second request. While horizontal mergers predominate, vertical, potential competition and...

The modern Merger Guidelines have controlled merger policy for over three decades. Economic theory has evolved (and continues to evolve) and revisions of the Merger Guidelines have integrated some of these considerations into the merger review methodology. This paper tabulates and evaluates...

The modern Merger Guidelines have controlled merger enforcement decisions for the last thirty years. Economic theory has evolved (and continues to evolve) and revisions of the Guidelines have integrated some of these thoughts into the merger review methodology. This paper tabulates and evaluates...

Market definition, a concept that has long served to structure competitive analysis, is under assault from theoreticians who object to the inability of the standard analysis to define a market compatible with their models of unilateral effects. Although these unilateral models have not been...

A recent edition of the CPI Antitrust Chronicle provided a range of perspectives on the applicability of the Upward Pricing Pressure (UPP) model to merger analysis. A number of key insights (e.g., the relevance of market definition, the usefulness of an UPP screen, the similarity between UPP and...

Economists have two basic methodologies: structuralism, in which formal economic models control the analysis, and experimentalism, in which economic theory guides the analysis, but data from experiments determines the policy recommendation. The choice between the two approaches is often quite...