Jean Tirole

Tirole received the 2014 prize for his analysis of market power and regulation. His work shows why regulators often need industry-specific rules when a market is dominated by a small number of powerful firms.

Tirole showed that one universal policy cannot efficiently regulate every monopoly or oligopoly because regulators face different information and incentive problems in each industry. His models examine tools such as price controls, contracts, and access rules.

Tirole, often working with Jean-Charles Rochet, helped formalize the economics of two-sided markets. That framework is useful for studying platforms that connect distinct groups, such as cardholders and merchants or users and advertisers.

The Theory of Industrial Organization, published in 1988, is a foundational graduate-level treatment of competition, strategic behavior, and regulation. His later book The Theory of Corporate Finance applies similarly rigorous models to firms, managers, and investors.