Thursday, August 20, 2020

The 2010 HMGs Ten Years Later: Where Do We Go From Here?

The 2010 HMGs Ten Years Later: Where Do We Go From Here?

Steven C. Salop

Georgetown University Law Center

Fiona M. Scott Morton

Yale School of Management; National Bureau of Economic Research (NBER)

Abstract

In this short article, which is part of a RIO Symposium on the Tenth Anniversary of the 2010 Merger Guidelines, we suggest a number of improvements that should be considered in the next revision of the Guidelines. Our analysis is based on the observation that horizontal merger policy has suffered from under-enforcement. We provide evidence that the enforcement agencies face significant resource constraints which require a triage process that inevitably leads to under-enforcement. In light of merger law placing greater weight on avoiding false negatives and under-deterrence than false positive and over-deterrence, the article suggests a number of ways in which the under-enforcement bias might be corrected, including (among others) rolling back the increase in the HHI “red zone” thresholds; mandating anticompetitive presumptions for mergers with high GUPPIs, acquisitions of mavericks, and acquisitions by dominant firms; closer analysis of common ownership by financial funds; and expanded analysis of potential competition mergers.

https://lawprofessors.typepad.com/antitrustprof_blog/2020/08/the-2010-hmgs-ten-years-later-where-do-we-go-from-here.html

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