Thomas Crombie Schelling (born 14 April 1921) is an American economist and professor of foreign affairs, national security, nuclear strategy, and arms control at the School of Public Policy at University of Maryland, College Park. He was awarded the 2005 Nobel Memorial Prize in Economic Sciences (shared with Robert Aumann) for "having enhanced our understanding of conflict and cooperation through game-theory analysis."

Schelling received his bachelor's degree in economics from the University of California, Berkeley in 1944. He received his PhD in economics from Harvard University in 1951.

He served with the Marshall Plan in Europe, the White House, and the Executive Office of the President from 1948 to 1953. He wrote most of his dissertation on national income behavior working at night while in Europe. He left government to join the economics faculty at Yale University, and in 1958 he was appointed Professor of Economics at Harvard. In 1969 he joined the Kennedy School at Harvard University. Dr. Schelling taught for twenty years at Harvard University's John F. Kennedy School of Government, being the Lucius N. Littauer Professor of Political Economy, as well as conducted research at IIASA, in Laxenburg, Austria between 1994 and 1999.

A series of closely interrelated essays on game theory, this book deals with an area in which progress has been least satisfactory-the situations where there is a common interest as well as conflict between adversaries: negotiations, war and threats of war, criminal deterrence, extortion, tacit bargaining. It proposes enlightening similarities between, for instance, maneuvering in limited war and in a traffic jam; deterring the Russians and one's own children; the modern strategy of terror and the ancient institution of hostages.