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A Merger Between United and American Airlines Is Likely To Substantially Lessen Competition

Ratib Ali analyzes whether a merger between United and American Airlines would pass merger review according to the 2023 Merger Guidelines and finds that under multiple market definitions, it would substantially lessen competition.

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November 6-7: Stigler Center-CEPR Political Economy of Finance Conference 2026: Crony Capitalism in 21st Century America (call for papers due June 1)

Trade Wars Have Kept Canadian Tourists Away and Cost Americans Jobs

André Kurmann, Etienne Lalé and Julien Martin

How the Professionalization of College Sports Changed Who Wins

Diana L. Moss

How Civil Society Propagandizes the President’s Foreign Policy Agenda

Andy Shi

Tune in to the 2026 Stigler Center Conference: “Can Capitalism Be Popular?”

ProMarket writers

Free Speech Protections Boost Innovation

Swarnodeep Homroy

Federal Agency Independence Is in Jeopardy. Right When It Has Started to Matter

Cree Jones, Tyler Lindley and Thomas Smith

Market Failure, Not Technology, Is Slowing the Green Transition

Piergiuseppe Fortunato and Verena Hitner Barros

Chinese Car Exports to the EU Exemplify the Role of Data and IP in Trade Relations

Oscar Borgogno and Giovanni Veronese

Can AI Catch Cartels Across Borders?

Yoan Hermstrüwer and David Imhof

A New Firearms Tax Design Could Reduce Homicides Without Costing Gun Owners

Luis Armona and Adam Rosenberg

ProMarketInsights shaping the future of capitalism

Featured Stories

Reverse Acquihires Reveal Antitrust’s Need To Update Its Conceptual Understanding of Hiring

When Migrant Workers Disappeared, Korean Firms and Workers Struggled

Concerns Over Killer Acquisitions Are Redrawing the Boundaries of EU Merger Control and Its Political Economy Underpinnings

The Antitrust Risks of Anthropic’s Project Glasswing and the ‘AI Avengers’

A Merger Between United and American Airlines Is Likely To Substantially Lessen Competition

Recent Authors

Reverse Acquihires Reveal Antitrust’s Need To Update Its Conceptual Understanding of Hiring

When Migrant Workers Disappeared, Korean Firms and Workers Struggled

Concerns Over Killer Acquisitions Are Redrawing the Boundaries of EU Merger Control and Its Political Economy Underpinnings

The Antitrust Risks of Anthropic’s Project Glasswing and the ‘AI Avengers’

Trade Wars Have Kept Canadian Tourists Away and Cost Americans Jobs

How the Professionalization of College Sports Changed Who Wins

How Civil Society Propagandizes the President’s Foreign Policy Agenda

Tune in to the 2026 Stigler Center Conference: “Can Capitalism Be Popular?”

Free Speech Protections Boost Innovation

Featured Stories

Reverse Acquihires Reveal Antitrust’s Need To Update Its Conceptual Understanding of Hiring

When Migrant Workers Disappeared, Korean Firms and Workers Struggled

Concerns Over Killer Acquisitions Are Redrawing the Boundaries of EU Merger Control and Its Political Economy Underpinnings

The Antitrust Risks of Anthropic’s Project Glasswing and the ‘AI Avengers’

Announcements

Trade Wars Have Kept Canadian Tourists Away and Cost Americans Jobs

How the Professionalization of College Sports Changed Who Wins

How Civil Society Propagandizes the President’s Foreign Policy Agenda

Tune in to the 2026 Stigler Center Conference: “Can Capitalism Be Popular?”

Free Speech Protections Boost Innovation

Federal Agency Independence Is in Jeopardy. Right When It Has Started to Matter

Market Failure, Not Technology, Is Slowing the Green Transition

Chinese Car Exports to the EU Exemplify the Role of Data and IP in Trade Relations

Can AI Catch Cartels Across Borders?

A New Firearms Tax Design Could Reduce Homicides Without Costing Gun Owners

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