Digital platforms

In new research, Louis Pape and Michelangelo Rossi find that the European Union’s Digital Markets Act’s prohibition on self-preferencing had little effect on the popularity of Google Maps relative to competitors. User preference for the incumbent service appears to outweigh frictional barriers to access.

In new research in collaboration with Color of Change, Dante Donati and Lena Song find that comments on social media posts help drive platform engagement for organizations. However, comment sections are often populated by a vocal minority, and adversarial comments from them come with reduced off-platform support for the original posters.

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.

In new research providing the first systematic evidence on public notices, Kimberlyn Munevar, Anya Nakhmurina, and Delphine Samuels examine how Florida's 2023 law allowing local governments to stop publishing public notices in newspapers has affected citizen engagement in local governance.

Online degrees are reshaping higher education by lowering tuition prices and reducing in-person program availability. In new research, Nano Barahona, Cauê Dobbin, and Sebastián Otero find that Brazil’s high online enrollment benefits those who need cheaper and more flexible options, but ultimately hurts young undergraduate students who are shifting away from higher-value in-person education options.

In new research, Muxin Li and Ksenia Shakhgildyan examine the 2018 “brand gating” agreement between Apple and Amazon and how it impacted competition and consumer welfare on Amazon’s platform.

Jérémie Haese and Christian Peukert present new empirical findings on core open source technologies for the web and AI. Open source holds promise for making AI systems more transparent and secure, but it risks masking continued centralized control under the guise of openness.

Christian Peukert argues that the market for licensing content from copyright owners like newspapers or online forums requires a standardized regime if access to this data, used to train artificial intelligence models, is to remain available for more than just the largest AI firms. A failure to maintain non-discriminatory access will result in the consolidation of both the AI and content production markets.

Member of the European Parliament Alexandra Geese writes that illiberal politicians and Big Tech social media platforms have abused the principle of freedom of speech to suppress ideas with which they do not agree and promote hate speech. She provides three recommendations for retaking speech from the social media platforms that constitute today’s public sphere.

Andrey Mir writes that antitrust scholarship and enforcement seeking to break up platform monopolies overlook the benefits that these platforms provide because they are monopolies. He says the community must keep this in mind as it seeks to alleviate harms that any monopoly incurs to the economy.