On the basis of goal/expectation theory, it was predicted that just as in interpersonal relationships, cooperation in social dilemma groups would increase only if both trust was high and group members had a common goal of cooperation. Introducing new measures of both these two processes to the social dilemma arena, the goal of mutual cooperation was assessed by the process of self–other merging...

Recognition of behavioral types can facilitate the evolution of cooperation by enabling altruistic behavior to be directed at other cooperators and withheld from defectors. While much is known about the tendency for recognition to promote cooperation, relatively little is known about whether such a capacity can coevolve with the social behavior it supports. Here we use evolutionary game theory ...

Malicious behaviors and cooperation have been well studied separately. However, rare systematic study has been conducted on the combination of them: malicious cooperation. In this paper, a general quantitative utility function of malicious cooperation is firstly formulated in a congestion game framework. Both objective and subjective factors are incorporated (e.g., malicious social networks and...

royal fiqh or what has come in these days as political jurisprudence with the inclusion of issues and topics of politics and government also contains topics of social and economic importance particularly those linked to combating poverty and public hunger as well as attention to social justice which scholars of islam paid attention from old days. authors in this way tried to check the system of...

Kin selected benefits of cooperation result in pronounced kin discrimination and nepotism in many social species and favour the evolution of sociality. However, low variability in relatedness among group members, infrequent competitive interactions with non-relatives, and direct benefits of cooperation may relax selection for nepotism. We tested this prediction in a permanently social spider, S...

cooperation in pastoralism and indigenous knowledge of dairy management had been considered for many years in iran and had been adapted with culture and environment of every region. this research had illustrated the analysis of indigenous knowledge and social cohesion in dairy management of grazing livestock in ghasr e yaghub village. research method was a combination of filed studies, direct o...

INTRODUCTION As this year's ISM conference has made clear, alliances between social and commercial marketers – such as CARE's links with Starbucks Coffee, and the Nature Conservancy's work with Georgia-Pacific – have captured the attention and imagination of our field. This is both good and necessary, since such partnerships have the potential to deliver previously unexploited synergies and a w...

Cooperation is integral to much of biological life but can be threatened by selfish evolutionary strategies. Diverse cooperative traits have evolved among microbes, but particularly sophisticated forms of sociality have arisen in the myxobacteria, including group motility and multicellular fruiting body development. Myxobacterial cooperation has succeeded against socially destructive cheaters a...