In new research, Renuka Diwan, Paul Eliason, Riley League, Ryan C. McDevitt, James W. Roberts, and Jetson Leder-Luis investigate how Medicare’s shift to a competitive bidding system to reduce prices has inadvertently shifted market share to fraudulent suppliers.

Antitrust authorities increasingly assess mergers through the lens of innovation, particularly in research-intensive sectors such as pharmaceuticals. In new research, Carmine Ornaghi and Lorenzo Cassi show how mergers disrupt human capital and reduce innovation in what they call manslaughter acquisitions.

In new research, Martin Schmalz and Jin Xie examine how shareholder preferences influence the United States pharmaceutical industry. They find that generic-drug manufacturers sometimes harm their firms’ own value when doing so benefits shareholder portfolios, who frequently have stakes in competing brand-name firms.

Hannah Pittock uses weight-loss company Novo Nordisk’s offer to acquire Metsera to create a three-prong framework by which the antitrust agencies can identify when an invitation to exclude a rival from a market constitutes illegal exclusionary conduct under Section 2 of the Sherman Act.

The recent, blustery movements in oil prices in response to the United States’ war with Iran illustrate the financial market’s agile ability to reprice for a predicted future market. Yet, a decade after 195 nations adopted the Paris Agreement to transition away from fossil fuels, the market has made no changes in response. Part of this may be due to investors’ expectations of a delayed rollout, but the inertia is also due to flawed market design in which laws of fiduciary duty prevent funds from providing investors with vehicles that can make true bets on how soon the world will retire fossil fuels, writes Michael A. Santoro.

Americans’ retirement savings are disproportionately tied to the dozen Big Tech firms that now dominate the S&P. This makes any intervention into regulating Big Tech that risks devaluing them politically difficult, writes Hera Hyeonseo Lee.

Across three studies, Jana Friedrichsen, Julia Schwarz, and Michel Clement explore how generative AI will change the music industry. They find that while consumers enjoy and even prefer AI-generated music, preferences shift upon learning that the song was AI-generated.

American communities have begun to reject the construction of local data centers out of concern that they drive up electricity prices without returning durable and diversified job and other economic benefits. Jake Higdon writes that governments concerned about these risks should not only insulate consumers from higher prices, but also demand that data center investments be used to power reindustrialization efforts.