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Pastime Theory

By: Roberto Bell

Game theory is a domain of practical mathematics that is used in the social sciences (most notably economics), biology, political science, computer science, and belief. Game theory attempts to mathematically imprison behavior in strategic situations, in which an individual's success in making choices depends on the choices of others. While initially developed to evaluate competitions in which one individual does better at another's expense (zero sum games), it has been prolonged to treat a wide class of communications, which are classified according to several criteria.

Traditional applications of game theory attempt to find equilibrium in these games—sets of strategies in which individuals are unlikely to change their behavior. Many equilibrium concepts have been developed (most famously the Nash equilibrium) in an attempt to capture this idea. These equilibrium concepts are motivated differently depending on the field of application, although they often overlie or coincide. This style is not without disapproval, and debates continue over the appropriateness of particular equilibrium concepts, the appropriateness of equilibrium altogether, and the usefulness of mathematical models more generally.

Although some developments occurred before it, the meadow of game theory came into being with the 1944 book Theory of Games and monetary Behavior by John von Neumann and Oskar Morgenstern. This theory was developed expansively in the 1950s by countless scholars. Game theory was later openely applied to natural science in the 1970s, although similar developments go back at least as far as the 1930s. Game theory has been widely recognized as an important instrument in many fields. The first known conersation of game theory occurred in a letter written by James Waldegrave in 1713. In this letter, Waldegrave provides a minimax mixed approach answer to a two-person version of the card game Le Her. It was not until the publication of Antoine Augustin Cournot's Researches into the Mathematical ideology of the Theory of Wealth in 1838 that a general game theoretic analysis was pursued. In this work Cournot considers a duopoly and presents a solution that is a constraint version of the Nash equilibrium.

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