Chinese-Tanzanian Friendship and Friendship Treaties

‘ Friendship ’ for fitness or ‘ friendship ’ for friendship ’ s sake ?

Correspondence: P. Stopka, Department of Zoology, South Parks Road, Oxford OX1 3PS, U.K. (email: [email protected]). L. Barrett is at the School of Biological Sciences, University of Liverpool, Liverpool L69 3BX, U.K. Hemelrijk et al. (1999), using data from a captive chimpanzee, Pan troglodytes, colony, state that there is no evidence to suggest that individuals trade ‘social services’...

Unilateral Friendship Outcomes and Preschool Friendship Formation

Unilateral friendships provide a powerful mechanism to study friendship formation, because these friendships contain interest in friendship, but have not yet become full, reciprocated friendship. This longitudinal study investigated whether the conversations of unilateral dyads identified in the fall were predictive of that dyad’s relationship status in the winter. I hypothesized that the conve...

Intrinsic and extrinsic motivation in early adolescents' friendship development: friendship selection, influence, and prospective friendship quality.

Friendships are essential for adolescent social development. However, they may be pursued for varying motives, which, in turn, may predict similarity in friendships via social selection or social influence processes, and likely help to explain friendship quality. We examined the effect of early adolescents' (N = 374, 12-14 years) intrinsic and extrinsic friendship motivation on friendship selec...

The Association between Friendship Companionship and Friendship Temporality: the Moderating Roles of Friendship Context and Ethnicity

Friendship selection

We model the formation of friendships as repeated cooperation within a set of heterogeneous players. The model is built around three of the most important facts about friendship: friends help each other, there is reciprocity in the relationship and people usually have only a few friends. In our results, we explain how similarity between people affects the friendship selection. We also character...