This is an extract from the 4-volume dictionary of economics, a reference book which aims to define the subject of economics today. 1300 subject entries in the complete work cover the broad themes of economic theory. It concentrates on the topic of game theory.

Game theory, R.J.Aumann; bargaining, J.C.Harsanyi; Joseph Louis Francois Bertrand, M.Shubik; bilateral monopoly, J.W.Friedman; common knowledge, S.Werlang; conflict and settlement, J.Hirshleifer; cooperative equilibrium, A.Mas-Collel; cooperative games, M.Shubik; cores, W.Hildenbrand; Antoine Augustin Cournot, M.Shubik; differntial games, S.Clemhout and H.Wan, Jr; duopoly, J.W.Friedman; extensive form games, E.van Damme; fair division, V.P.Crawford; games with incomplete information , R.J.Weber; Harold hotelling, K.J.Arrow; large economies, J.Roberts; Oscar Morgenstern, M.Shubik; Nash equilibrium, D.M.Kreps; non-cooperative games, J.E.Harrington, Jr; oligopoly and game theory, H.Sonnenschein; perfect information, L.J.Mirman; prisoner's dilemma, A.Rapoport; repeated games, J.F.Mertens; shapley value, S.Hart; statistical decision theory, J.O.Berger; strategic reallocation of endowments, Z.Safra; strategy-proof allocation mechanism, M.A.Satterthwaite; supergames, J.F.Mertens; John von Neumann, G.L.Thompson; zero-sum games, M.Bacharach.