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 can be balanced by a decrease in spiteful behavior towards the out-group
This paper studies the evolution of both characteristics of reciprocity- the willing-ness to reward ...
Conflict with conspecifics from neighbouring groups over territory, mating opportunities and other r...
Evolution of parochial altruism is studied in a well-mixed population subdivided into two groups. In...
We study conflict between two groups of individuals. Using Schaffer's (1988) concept of evolutionary...
We study conflict between two groups of individuals. Using Schaffer`s (1988) concept of evolutionary...
We provide an evolutionary explanation for the well-established evidence of the existence of in-grou...
In-group favoritism is a central aspect of human behavior. People often help members of their own gr...
International audienceThis article examines the evolutionary stability of other-regarding preference...
Drawing on an idea proposed by Darwin, it has recently been hypothesized that violent intergroup con...
The scale of human cooperation and conflict is outstanding and evolutionarily challenging to expla...
In recent years there has been a large body of theoretical work examining how local competition can ...
In recent years there has been a large body of theoretical work examining how local competition can ...
Altruists and envious people who meet in contests are symbionts. They do better than a population of...
In-group favouritism, the practice of treating fellow members of a group better than outsiders is co...
Altruists and envious people who meet in contests are symbionts. They do better than a population of...
This paper studies the evolution of both characteristics of reciprocity- the willing-ness to reward ...
Conflict with conspecifics from neighbouring groups over territory, mating opportunities and other r...
Evolution of parochial altruism is studied in a well-mixed population subdivided into two groups. In...
We study conflict between two groups of individuals. Using Schaffer's (1988) concept of evolutionary...
We study conflict between two groups of individuals. Using Schaffer`s (1988) concept of evolutionary...
We provide an evolutionary explanation for the well-established evidence of the existence of in-grou...
In-group favoritism is a central aspect of human behavior. People often help members of their own gr...
International audienceThis article examines the evolutionary stability of other-regarding preference...
Drawing on an idea proposed by Darwin, it has recently been hypothesized that violent intergroup con...
The scale of human cooperation and conflict is outstanding and evolutionarily challenging to expla...
In recent years there has been a large body of theoretical work examining how local competition can ...
In recent years there has been a large body of theoretical work examining how local competition can ...
Altruists and envious people who meet in contests are symbionts. They do better than a population of...
In-group favouritism, the practice of treating fellow members of a group better than outsiders is co...
Altruists and envious people who meet in contests are symbionts. They do better than a population of...
This paper studies the evolution of both characteristics of reciprocity- the willing-ness to reward ...
Conflict with conspecifics from neighbouring groups over territory, mating opportunities and other r...
Evolution of parochial altruism is studied in a well-mixed population subdivided into two groups. In...