What Is Game Theory Method?


Martha Robinson

Game theory is a mathematical approach to understanding strategic decision-making. It is widely used in economics, political science, psychology, and other fields to analyze situations where the outcome depends on the choices of multiple players.

What is Game Theory?

Game theory is a method that uses mathematical models to analyze interactions between different decision-makers, called players. These players make decisions based on their own self-interest, with the aim of achieving the best possible outcome for themselves.

The Basic Elements of Game Theory

The basic elements of game theory include players, strategies, and payoffs. The players are the individuals or organizations involved in the game.

The strategies are the options available to each player for making decisions. The payoffs are the outcomes that result from each combination of strategies chosen by the players.

  • Players

Players can be individuals or groups, organizations or institutions, countries or regions. They can be rational or irrational and can have different goals and preferences.

  • Strategies

Strategies are all possible actions that a player can take in a given situation. A strategy can be simple or complex, and can involve a single move or a sequence of moves.

  • Payoffs

Payoffs represent the outcomes that result from each combination of strategies chosen by the players. They can be expressed in various forms such as monetary gains, utility functions, or social welfare.

Types of Games in Game Theory

There are different types of games in game theory such as:

  • Prisoner’s Dilemma Game: In this game, two criminals are arrested and put into separate cells. Each criminal has two options: either to confess or remain silent. If both confess, they will receive harsher sentences than if they both remain silent.

    If one confesses and the other remains silent, the confessor will receive a lighter sentence than the silent one.

  • Coordination Game: In this game, two players have to coordinate their actions to achieve a common goal. For example, two friends trying to meet each other in a crowded place.
  • Battle of the Sexes Game: In this game, two players have different preferences about the outcome. For example, a couple deciding whether to go to a football match or a ballet performance.

Applications of Game Theory

Game theory has many applications in various fields such as:

  • Economics: Game theory is used to study market competition, pricing strategies, and bargaining processes.
  • Political Science: Game theory is used to analyze voting behavior, international relations, and conflict resolution.
  • Psychology: Game theory is used to study decision-making processes and social behavior.


Game theory provides a powerful tool for analyzing strategic decision-making in different fields. It helps us understand how different players interact with each other and make decisions based on their own self-interest. By using game theory models, we can predict outcomes and find optimal solutions for complex situations where multiple players are involved.