According to Wikipedia, game theory is a branch of applied mathematics used in the social sciences (mainly economics). Game theory can also be defined as a theory of competition expressed in terms of gains and losses between opposing players. Game theory seeks to mathematically imprison behavior in strategic situations, where a person's success in making choices depends on the choices of others. The traditional application of this theory attempts to find the balance in these games, in the equilibrium. Each player of the game adopted a different strategy from him (Game Theory). For a psychologist, what is known is game theory, for economists, what is known is the theory of social situations, which is a very accurate description of what game theory is about. Game theory is appropriate in board games such as poker and bridge Research in game theory focuses primarily on how groups of people interact. Game theory has two main branches. The two main branches of game theory include: cooperative game theory and non-cooperative game theory Game theory also has many different types, including cooperative and non-cooperative games, other types I will briefly review later. In addition to game theory, economic theory has 3 other branches which are all related to game theory (What is game theory?) Branches of economic theory: Decision theory: Decision theory is an area of ​​study of discrete, related mathematics of interest to practitioners in all branches of science, engineering, and all human social activities. It is concerned with how real or ideal decision makers make or should make decisions and how optimal decisions can be reached (decision theory). This theory deals with single-person gaming and single-player games… middle of the paper…). .game theory. May 12, 20098. Game Theory. May 12, 2009.9. Game theory. < http://en.wikipedia.org/wiki/Game_theory >. May 6, 2009.10. Game theory. . May 6, 2009.11. Game theory. . May 6, 2009.12. Game theory. May 27, 200913. Game Theory. . May 27, 200914. Game Theory. 27 May 200915. Critique of game theory. . May22, 200916. Critique of game theory. . May22, 2009