He won a Nobel Prize for proving that rational decision-making is a fiction.
Herbert Alexander Simon was born in Milwaukee, Wisconsin, in 1916. He studied political science at the University of Chicago and spent most of his career at Carnegie Mellon University, where he held appointments in computer science, psychology, and business. He won the Nobel Memorial Prize in Economic Sciences in 1978 for his research on decision-making within organizations.1
His central insight was that human beings do not make decisions the way classical economics assumed they did. Economic theory posited a rational actor with complete information, unlimited processing capacity, and clear preferences. Simon argued that real people operate under what he called "bounded rationality," making decisions with incomplete information, limited time, and finite cognitive resources.2
Instead of optimizing, Simon argued, people "satisfice," a word he coined by combining "satisfy" and "suffice." They search for options until they find one that meets a minimum threshold of acceptability, then stop looking. The decision is good enough, not the best possible, because the cost of continuing to search exceeds the likely benefit.3
This insight had direct implications for how organizations function. If individuals cannot process all available information, then the structure of an organization, what information reaches whom, what options are presented, what alternatives are excluded, shapes decisions as powerfully as the decision-makers themselves.
Simon was also a pioneer of artificial intelligence. With Allen Newell, he developed the Logic Theorist in 1956, one of the first programs designed to mimic human problem-solving. He spent decades studying how experts think, demonstrating that chess masters do not calculate more moves than novices but recognize patterns more efficiently.4
His 1947 book Administrative Behavior challenged the existing theory of management by showing that organizational decisions are shaped more by the information environment than by individual rationality. The book has been cited in over 30,000 scholarly works.5