Stanford University


Georgios Petropoulos
Platform Competition and Information Sharing

Georgios Petropoulos: Platform Competition and Information Sharing
November 6, 2023
12p - 1p Pacific Time
Hybrid event
Show buttons

Join us on Monday, November 6, 2023, when Stanford Digital Fellow Georgios Petropoulos joins us for his talk, “Platform Competition and Information Sharing.”

This is a hybrid seminar. The Stanford community is invited to attend the event in person. A valid Stanford email address is required. Register to attend the event in person.


Digital platforms, empowered by artificial intelligence algorithms, facilitate efficient interactions between consumers and merchants that allow the collection of profiling information which drives innovation and welfare. Private incentives, however, lead to information asymmetries resulting in market failures. This paper develops a product differentiation model of competition between two platforms to study private and social incentives to share information. Sharing information can be welfare-enhancing because it solves the data bottleneck market failure. Our findings imply that there is scope for the introduction of a mandatory information-sharing mechanism from big tech to their competitors that help the latter to improve their network value proposition and become more competitive in the market. The price of information in this sharing mechanism matters. We show that price regulation over information sharing like the one applied in the EU jurisdiction increases the incentives of big platforms to collect and analyze more data. It has ambiguous effects on their competitors that depend on the exact relationship between information and network value.

View working paper

About Georgios Petropoulos

Georgios Petropoulos

Georgios’ research focuses on the implications of digital technologies on innovation, competition policy, and labor markets. He is currently studying the regulation of digital platforms and the relationship between big data and market competition. His research also focuses on how the adoption of robots and information technologies affect labor markets and firms’ market returns. 

Georgios is also a post-doctoral researcher at MIT Initiative on the Digital Economy and a research fellow at Bruegel, an economics think tank based in Brussels.

He holds a bachelor degree in physics, master’s degrees in mathematical economics and econometrics, and a PhD degree in economics.

Stanford University