Whenever what is best for you depends on what others do, and what is best for them depends on you, you are in a game. Played on the page and then solved: the prisoner's dilemma and dominance; Nash equilibrium, mixed strategies and zero-sum games; game trees, commitment and repeated play; firms competing on price, auctions, signals and contracts; bargaining, coalitions, matching and voting; and strategies that evolve and players who learn. Choose your move against opponents whose rules are shown, find the equilibrium, test any answer for a player who could gain by changing alone — every payoff, equilibrium and simulation computed by the page.
Every equilibrium, payoff and number on these pages is computed by the page or cited with its source; your progress stays in this browser. Games are models: poker, auctions and markets are played for points, and nothing here is advice on gambling, betting, trading or bidding. Real conflicts and elections appear only as dated history with sources, and the course takes no position on any current dispute. Nothing here is legal, financial, medical or career advice. The course endorses no product or company: firms and events are named only for their place in the history of the subject. Not affiliated with or endorsed by any organisation, university, publisher or author mentioned here.