The goal of our study was to see if neural networks would cooperate with each other in two different game theory problems. We replicated a study entitled “Cooperation and the Evolution of Intelligence” by Luke McNally, Sam P. Brown and Andrew L. Jackson, however we evolved the neural networks with NEAT instead of a genetic algorithm. The neural networks would play every other individual in the ...

We provide axiomatic foundations for a simple model of play in prisoners’ dilemma games. The model accommodates cooperation and suggests that players behave as if their expectations about their opponents’ behavior vary with their own choice. We refer to this nonstandard updating as magical thinking. The degree to which players exhibit magical thinking may be heterogeneous in the population and ...

We examined a central assumption of recent theories: that social utility is contingent on impressions of other people. We manipulated participants’ impression of the other player in a prisoners’ dilemma. We then measured participants’ own preferences in the PD, their estimates of the other player’s preferences in the PD, their prediction of the other player’s move, and their own move. We hypoth...

Mentally ill people are not to be judged by the same rules as the mentally fit. Prisoners evaluated medically unfit for execution must undergo psychiatric treatment until their mental health is restored. Psychiatrists are placed in an ethical dilemma when asked to judge the mental health of prisoners on death row. A high prevalence of psychiatric and neurological disorders are reported on death...

We consider a modified Prisoners' Dilemma game in which each agent can offer to pay the other agent to cooperate. The subgame perfect equilibrium of this two-stage game is Pareto efficient. We examine experimentally whether subjects actually manage to achieve this efficient outcome. We find an encouraging level of support for the mechanism, but also find some evidence that subjects' tastes for ...

Change your habit to hang or waste the time to only chat with your friends. It is done by your everyday, don't you feel bored? Now, we will show you the new habit that, actually it's a very old habit to do that can make your life more qualified. When feeling bored of always chatting with your friends all free time, you can find the book enPDF the iterated prisoners dilemma 20 years on and then ...

How attention scarcity effects the outcomes of a game? We present our findings on a version of the Iterated Prisoners Dilemma (IPD) game in which players can accept or refuse to play with their partner. We study the memory size effect on determining the right partner to interact with. We investigate the conditions under which the cooperators are more likely to be advantageous than the defectors...

In this paper a class of large supergames, i.e., infinitely repeated games played by many players are studied. The players located on the vertex set of planar rectangle lattice play several basic games with his neighbors. The basic game is two-person prisoners’ dilemma game with asymmetric payoffs. Under the conditions of the pre-specified updating rules and the transition probabilities, the re...

Introduction Why have we economists been convinced for so long that our old friend, homo eco-nomicus must be selfish? No doubt we find considerable support for this hypothesis in the behavior of our colleagues. We might also expect that evolutionary pressures tend to produce selfish behavior–with the notable exception of the relation between parents and offspring. But can we expect natural sele...