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Antitrust Regulators Release

New Vertical Merger Guidelines



July 21, 2020
On June 30, the Department of Justice (DOJ) and Federal Trade Commission (FTC) finalized new
Vbrtical Merger Guidelines (VMG) outlining their approach to mergers and acquisitions between firms at
different stages of a supply chain. The revised guidelines are timely: vertical integration is growing
increasingly economically significant and politically fraught. As large firms in major industries-
including health care, telecommunications, agriculture, and information technology-make prominent
vertical deals, some lawmakers and economists have cast a critical eye toward a phenomenon that was
once viewed as largely benign. This Legal Sidebar provides a general overview of vertical merger
enforcement and discusses the implications of the new VMG. A companion CRS Insight analyzes
competition issues raised by vertical integration in digital markets-a topic that the revised guidelines do
not explicitly address.


Vertical Merger Enforcement

Section 7 of the Clayton Antitrust Act prohibits mergers and acquisitions that may substantially lessen
competition. The statute applies to both horizontal mergers between competitors (i.e., rivalwidget
manufacturers) and vertical deals between firms at different stages of a supply chain (i.e., a widget
manufacturer and a widget retailer).
While horizontal mergers can harm competition by allowing firms to directly absorb rivals, the potential
harms of vertical transactions are more indirect. Verticalmergers most often raise antitrust concerns when
an integrated firm would have the ability and incentive to foreclose rivals from supplies or customers.
For example, if a large widget manufacturer acquires a widget retailer, the vertically integrated firm may
charge high r prices to competing retailers or withhold widgets from those rivals altogether. And these
tactics can harm competition by diminishing the ability of other retailers to challenge the vertically
integrated firm. Similarly, if a large widget retailer acquires a widget manufacturer, the vertically
integrated firm may refuse to purchase widgets from rival manufacturers, harming their competitive
prospects.
But vertical mergers can also generate efficiencies. Because vertically integrated firms acquire inputs at
cost while unintegrated companies typically pay a markup, integrated firms can theoretically pass cost

                                                                 Congressional Re search Service
                                                                 https://crsreports.congress.gov
                                                                                     LSB10521

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