Group contests are ubiquitous. Some examples include warfare between countries,
competition between political parties, team‐incentives within firms, and rent‐seeking. In …

This paper presents a survey of the theoretical and empirical literature on cultural
transmission and socialization. It has been prepared for the Handbook of Social Economics …

When does a common group identity improve efficiency in coordination games? To answer
this question, we propose a group-contingent social preference model and derive conditions …

A disparate literature hypothesizes what can broadly be described as the common‐enemy
effect: the fact that the interaction with a common enemy (formed by Nature, an individual, or …

We propose a theoretical framework to study the determinants of ethnic and religious identity
along two distinct motivational processes: cultural distinction and cultural conformity. Under …

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 …

The banded mongoose (Mungos mungo) is a small (~ 1.5 kg) cooperative mammal
(Carnivora: Herpestidae) which is distributed widely throughout sub-Saharan Africa (Figure …

We consider a model of multilevel selection and the evolution of institutions that distribute
power in the form of influence in a group's collective interactions with other groups. In the …

We experimentally study endogenous alliance formation and contest effort choices in a
generic three-player contest. Differences in intrinsic or extrinsic incentives to expend effort …

Microeconomic modelling offers a powerful formal toolbox for analysing the complexities of
real-world intergroup relations and conflicts. One important class of models scrutinizes …