We analyse interethnic cooperation in an infinitely repeated prisoner’s dilemma when members of one group are unable to target punishment towards individual defectors from the other group. We first show that indiscriminate outgroup punishment may sustain cooperation in this setting. Our main...

We study the evolution of cooperation in spatial public goods games with four competing strategies: cooperators, defectors, punishing cooperators, and punishing defectors. To explore the robustness of the cooperation-promoting effect of costly punishment, besides the usual strategy adoption...

This paper uses the prisoner's dilemma game to explain why the financial services industry refuses to provide financial relief to homeowners even though the failure to provide meaningful relief has exacerbated the decline in home prices and has led to more foreclosures and losses for the industry

Such problems as inner-city traffic congestion and pollution are often asserted to be examples of the n-person Prisoners` Dilemma Game (PD), but there is a dearth of empirical research that tests this assertion. 551 car owners in Oxford responded to three pairs of alternatives designed as...

In der traditionellen Spieltheorie sind Strategien äquivalent mit Handlungen und gemischte Strategien die einzige Erweiterung dazu. Als eine neue Erweiterung werden Strategien als Pläne interpretiert. Obgleich die meisten Pläne nicht sehr interessant sind (wie eine bestimmte Handlung zu tun),...

Strategy changes are an essential part of evolutionary games. Here we introduce a simple rule that, depending on the value of a single parameter w, influences the selection of players that are considered as potential sources of the new strategy. For positive w players with high payoffs will be...

Standard game theory turns a blind eye toward social interaction between the players in a game. Hence, a given game offers the same set of equilibria regardless of the identities of the players and the specifics of the social context. The predictive value of game theory is severely limited as a...

In the last few decades, numerous experiments have shown that humans do not always behave so as to maximize their material payoff. Cooperative behavior when non-cooperation is a dominant strategy (with respect to the material payoffs) is particularly puzzling. Here we propose a novel approach to...

Social dilemmas are central to human society. Depletion of natural resources, climate protection, security of energy supply, and workplace collaborations are all examples of social dilemmas. Since cooperative behaviour in a social dilemma is individually costly, Nash equilibrium predicts that...

While the so-called ‘refugee crisis’ in Europe led to the de facto suspension of the Dublin Regulation in 2015/2016, researchers and practitioners are well aware that the crisis only highlighted existing shortcomings of the system governing the responsibility-allocation for asylum-seekers in...