Richard Posner
Judge and polymath who helped import price-theoretic reasoning into American law—antitrust, accidents, privacy—while later revisiting market fundamentalism after the financial crisis.
Posner’s opinions and treatises framed liability, remedies, and merger review partly as implicit benefit–cost balancing—linking bench practice to Chicago law-and-economics.
His post-crisis writing conceded blind spots in financial self-regulation, illustrating how insider critics can move with events.
Antitrust angle
Useful alongside Robert Bork, George Stigler, and politics-of-antitrust for how economic style entered doctrine.