What Is Called Game Theory?


Diego Sanchez

Game theory is a mathematical approach to understanding decision-making in competitive situations. It examines the behavior of individuals, organizations, and governments in strategic interactions where the outcome of one person’s decision depends on the decisions of others.

What is the aim of Game Theory?

The aim of game theory is to identify the optimal strategy for each player involved in a particular game. A game can be defined as a set of players, a set of strategies available to each player, and a set of payoffs for each possible combination of strategies.

Types of Games

There are two main types of games: cooperative and non-cooperative. In cooperative games, players can communicate and work together to achieve a common goal. In non-cooperative games, players cannot communicate or collaborate, and each player’s decision affects the outcome for all players.


One classic example of game theory is the Prisoner’s Dilemma. In this game, two suspects are arrested and held in separate cells. Each has two choices: confess or remain silent.

If both confess, they both receive a moderate sentence. If one confesses and the other remains silent, the confessor goes free while the silent suspect receives a harsh sentence. If both remain silent, they both receive a light sentence.

Another example is the game Rock-Paper-Scissors. In this game, two players simultaneously choose one of three options: rock (a closed fist), paper (an open hand), or scissors (a fist with two fingers extended). Rock beats scissors, scissors beat paper, and paper beats rock.


Game theory has numerous applications in fields such as economics, political science, psychology, biology, and computer science. It can be used to model markets, auctions, voting systems, negotiations between countries or businesses, social dilemmas such as climate change, and even the behavior of animals.


In conclusion, game theory is a powerful tool for analyzing strategic interactions between individuals or organizations. By identifying the optimal strategy for each player in a game, it can help us understand and predict behavior in a wide variety of scenarios. Whether you’re a student of economics or simply interested in understanding the world around you, game theory is an important concept to know.