PERSON
Ronald Coase
The British economist who in 1937 asked why firms exist—and answered with a framework so simple and so general that ninety years later it is the most powerful available lens for understanding what artificial intelligence is doing to organizations, markets, and the boundary between them.
Ronald Coase crossed the Atlantic in 1931 as a twenty-year-old student with a question his professors could not answer: if markets coordinate economic activity so efficiently, why do firms exist at all? Inside a firm, people do not buy and sell their services to each other moment by moment; they submit to managerial authority, follow direction, and produce together in a way that looks nothing like the market mechanism. Coase spent months visiting American factories, asking businesspeople the obvious question, and returned to write “The Nature of the Firm” (1937)—a paper that founded an entire field while explaining, in one sentence, everything that field would spend decades elaborating: firms exist because using the market is costly, and when those costs are high enough, internal coordination is cheaper.
Transaction costs—search, bargaining, specification, enforcement—are the friction of exchange itself, and
the firm is the institution that arises wherever that friction makes hierarchy