Speaking Engagement

ABA Buy-Side Market Definition Webinar

February 4, 2026
Virtual

Alexandra Charbi moderates the seminar, the latest installment of the Groundbreakers series, exploring how antitrust agencies define buyer markets focusing on the Hypothetical Monopsonist Test, used to assess buyer power in input markets. The session will feature Dr. Craig R. Malam, author of the paper “Demystifying the Hypothetical Monopsonist Test: Defining Buyer Markets”, along with discussant Dr. Randy Chugh.

Topics Covered
• What HMNT is, how it differs from the traditional seller-focused test, and why the difference matters.
• Economic tools used in HMNT, including Critical Loss and Recapture Rate approaches
• How to implement the test and identify relevant data
• Lessons from recent cases and implications for future enforcement

For more information on this event, click here.

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