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Efficiencies in the 2023 Merger Guidelines

  • Roger D. Blair EMAIL logo and Olivia Liu
Published/Copyright: October 20, 2025
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Abstract

This paper casts a critical eye on the role of efficiencies in the 2023 Merger Guidelines. This analysis addresses mergers that reduce production costs, those that reduce transaction costs, and those that improve product quality. In addition, this paper examines the antitrust treatment of mergers that change the market structure and thereby improve both consumer and social welfare. These include mergers of successive monopolists, mergers of complementary good producers, and mergers that create bilateral monopoly.

JEL Classification: K21; G34; D42

Corresponding author: Roger D. Blair, Professor, Department of Economics, University of Florida and Affiliate Faculty, Levin College of Law, University of Florida, Gainesville, FL, USA, E-mail:

We are grateful to an anonymous reviewer for helpful and constructive comments.


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Received: 2025-08-06
Accepted: 2025-09-21
Published Online: 2025-10-20

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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