In game theory, the prisoner's dilemma is a type of non-zero-sum game in which two players can each choose to cooperate or defect, knowing that the other player is making the same choice. If both players cooperate, they both receive a payoff; if both players defect, they both receive a lower payoff; and if one player defects while the other cooperates, the defector receives a higher payoff while the cooperator receives a lower payoff.

The dilemma arises because, although it is in each player's best interest to defect, both players would be better off if they both cooperated. The payoff for each player depends on the choices of both players, and each player has an incentive to defect even though it is not in their best interest to do so.

The prisoner's dilemma has been used to model a wide variety of real-world situations, including economic competition, arms races, and interpersonal relationships.

### What is the basic prisoner's dilemma story?

In the basic prisoner's dilemma story, two prisoners are each offered the opportunity to confess to a crime. If both prisoners confess, then each will receive a sentence of two years in prison. If only one prisoner confesses, then that prisoner will receive a sentence of five years in prison and the other prisoner will receive a sentence of one year in prison. If neither prisoner confesses, then each will receive a sentence of one year in prison.

#### What is the solution to the prisoner's dilemma?

The prisoner's dilemma is a classic problem in game theory that demonstrates the importance of communication and cooperation in achieving the best possible outcome for all parties involved. The dilemma is typically presented as follows: Two prisoners are being held in separate cells and are each offered the following deal by the prosecutor: If one prisoner defects (i.e. testifies against the other) and the other remains silent, the defector will be set free and the other prisoner will receive a long prison sentence. If both prisoners defect, then each will receive a shorter prison sentence. If both prisoners remain silent, then each will be set free.

The dilemma confronting each prisoner is whether to defect or remain silent. If both prisoners defect, then they will each receive a shorter prison sentence; however, if one prisoner defects and the other remains silent, the defector will be set free and the other prisoner will receive a long prison sentence. The best possible outcome for both prisoners is for both of them to remain silent; however, the temptation to defect and receive a shorter prison sentence is often too strong, leading to both prisoners defecting and receiving longer prison sentences.

The prisoner's dilemma demonstrates the importance of communication and cooperation in achieving the best possible outcome for all parties involved. In order to achieve the best possible outcome, both prisoners need to trust that the other will remain silent. If both prisoners are able to communicate and cooperate, then they can achieve the best possible outcome for both of them.

#### What is the prisoner's dilemma experiment?

In the prisoner's dilemma experiment, two prisoners are each given the choice to either confess to a crime, or to remain silent. If both prisoners confess, then each will receive a sentence of two years in prison. If both prisoners remain silent, each will receive a sentence of one year in prison. However, if one prisoner confesses and the other does not, then the prisoner who confesses will receive a sentence of three years in prison, while the other prisoner will be set free.

The prisoners are not allowed to communicate with each other, and must make their decision independently. The dilemma is that each prisoner has an incentive to confess, in order to avoid the possibility of a longer sentence, but if both prisoners confess then they will both end up with a longer sentence than if they had both remained silent.

### Who proposed prisoner's dilemma?

In game theory, the prisoner's dilemma is a type of non-zero-sum game in which two players can each choose to cooperate or defect, knowing that the other player is making the same choice. The dilemma is that, while it is in each player's best interest to cooperate, the temptation to defect is always there.

The prisoner's dilemma was first proposed by Merrill Flood and Melvin Dresher in 1950, as a way to understand how people might behave in situations where they are tempted to act in their own self-interest, even if it is not in the best interest of the group as a whole.