Evolutionary models of in-group favoritism
نویسندگان
چکیده
In-group favoritism is the tendency for individuals to cooperate with in-group members more strongly than with out-group members. Similar concepts have been described across different domains, including in-group bias, tag-based cooperation, parochial altruism, and ethnocentrism. Both humans and other animals show this behavior. Here, we review evolutionary mechanisms for explaining this phenomenon by covering recently developed mathematical models. In fact, in-group favoritism is not easily realized on its own in theory, although it can evolve under some conditions. We also discuss the implications of these modeling results in future empirical and theoretical research.
منابع مشابه
Bounded Rationality's Account for the Influence of Group Identification on Ingroup Favoritism: A Field Investigation Using Jewish and Arab Populations in Israel
We used the bounded rationality approach to explore the impact of group identification on intergroup relations. 1,289 Jewish and Arab citizens completed assessments of group identification, functional relations, and indices of ingroup favoritism. Results provided evidence of (a) a positive relation between group identification and ingroup favoritism; (b) perceptions of more positive functional ...
متن کاملEvolution of in-group favoritism
In-group favoritism is a central aspect of human behavior. People often help members of their own group more than members of other groups. Here we propose a mathematical framework for the evolution of in-group favoritism from a continuum of strategies. Unlike previous models, we do not pre-suppose that players never cooperate with out-group members. Instead, we determine the conditions under wh...
متن کاملEvolutionarily stable in-group favoritism and out-group spite in intergroup conflict.
We study conflict between two groups of individuals. Using Schaffer's (1988) concept of evolutionary stability we provide an evolutionary underpinning for in-group altruism combined with spiteful behavior towards members of the rival out-group. We characterize the set of evolutionarily stable combinations of in-group favoritism and out-group spite and find that an increase in in-group altruism ...
متن کاملEvolutionarily stable in-group favoritism and out-group spite in intergroup conict
We study conict between two groups of individuals. Using Schaffers (1988) concept of evolutionary stability we provide an evolutionary underpinning for in-group altruism combined with spiteful behavior towards members of the rival out-group. We characterize the set of evolutionarily stable combinations of in-group favoritism and out-group spite and nd that an increase in in-group altruism ca...
متن کاملThe Evolution of Ethnocentrism
Ethnocentrism is a nearly universal syndrome of attitudes and behaviors, typically including in-group favoritism. Empirical evidence suggests that a predisposition to favor in-groups can be easily triggered by even arbitrary group distinctions and that preferential cooperation within groups occurs even when it is individually costly. The authors study the emergence and robustness of ethnocentri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 7 شماره
صفحات -
تاریخ انتشار 2015