Law Commons^™

Revising The U.S. Vertical Merger Guidelines: Policy Issues And An Interim Guide For Practitioners, Steven C. Salop, Daniel P. Culley

Georgetown Law Faculty Publications and Other Works

Mergers and acquisitions are a major component of antitrust law and practice. The U.S. antitrust agencies spend a majority of their time on merger enforcement. The focus of most merger review at the agencies involves horizontal mergers, that is, mergers among firms that compete at the same level of production or distribution.

Vertical mergers combine firms at different levels of production or distribution. In the simplest case, a vertical merger joins together a firm that produces an input (and competes in an input market) with a firm that uses that input to produce output (and competes in an output market). …

Cguppi: Scoring Incentives To Engage In Parallel Accommodating Conduct, Serge Moresi, David Reitman, Steven C. Salop, Yianis Sarafidis

Georgetown Law Faculty Publications and Other Works

We propose an index for scoring coordination incentives, which we call the “coordination GUPPI” or cGUPPI. While the cGUPPI can be applied to a wide range of coordinated effects concerns, it is particularly relevant for gauging concerns of parallel accommodating conduct (PAC), a concept that received due prominence in the 2010 U.S. Horizontal Merger Guidelines. PAC is a type of coordinated conduct whereby a firm raises price with the expectation—but without any prior agreement—that one or more other firms will follow and match the price increase. The cGUPPI is the highest uniform price increase that all the would-be coordinating firms …