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W.C. Bunting and Tomer Stein investigate the role of amicus curiae process in the development of business law cases at the state level. The findings reveal that the business law amicus curiae process is dominated by lobbying groups, particularly by associations serving big business, and that these "Amicus Lobbying" efforts have a higher success rate compared to non-lobbying groups.

In new research, Marc Jacob, Barton E. Lee and Gabriele Gratton argue that legislative gridlock is not only a consequence of Congress’ polarization but also a cause of it. In sum, both polarization and gridlock fuel one another generating a vicious spiral toward political mire.

The 2024 Stigler Center Affiliate Fellows at the Stigler Center at Chicago Booth are a multidisciplinary group of economists, business scholars, lawyers, and political scientists.

Roslyn Layton highlights a recent data breach that exposed the personal information of millions of customers, including those who never directly used Ticketmaster's services, underscoring concerns about the company's data collection practices and market dominance.

Concerns about market concentration and its effects on competition are at the heart of antitrust policy. Will Macheel explains the Herfindahl-Hirschman Index (HHI) as a common measure of market concentration, its implications for United States antitrust policy, and potential drawbacks of the measure. He closes the article by highlighting research on the HHI as a regulatory tool for screening mergers.

Piergiuseppe Fortunato, Tanmay Singh, and Marco Pecoraro research the behavior of populist leaders and parties around the world and how their policies influence subsequent government spending. Their research shows that populists from either side of the ideological spectrum have very little in common in terms of policy despite similar anti-elite rhetoric.

ProMarket Student Editor Surya Gowda speaks with Georgetown University postdoctoral fellow Katie J. Wells about her new book with Kafui Attoh and Declan Cullen, Disrupting D.C.: The Rise of Uber and the Fall of the City. Wells discusses how Uber stepped in to solve local government failures, but introduced new problems in the process.

David Ennis evaluates how well the Affordable Care Act has met its expectations and where it has fallen short ten years after its implementation.

Eric A. Posner argues that merger review would benefit from involving union representatives to protect labor interests.

Gus Hurwitz replies to Jonathan Masur and Eric Posner’s May 8 article defending the Federal Trade Commission’s Congressional mandate to enforce a rule banning noncompetes. He argues that Congressional responses to FTC rulemaking in the 1970s suggest courts are unlikely to find that the FTC possesses such authority, either as a matter of statutory interpretation or under the major questions doctrine.