## nash equilibrium

*non-game*enjoyed by thousands of people up and down the UK every week.

A mathematical "paradox" explains why more roads don't necessarily mean fewer traffic jams.

**JosÃ©-Manuel Rey**revisits a scene of the film

*A beautiful Mind*.

Two game theorists share prize for their analyses of conflict and cooperation

**Steven J. Brams**uses the Cuban missile crisis to illustrate the Theory of Moves, which is not just an abstract mathematical model but one that mirrors the real-life choices, and underlying thinking, of flesh-and-blood decision makers.