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In this paper, we argue that friendship should receive more attention in social/personality research. Here, we focus on our area of expertise, personality traits, and review the literature on how personality traits influence friendship formation, maintenance, and dissolution. Specifically, we examine how personality traits of the actor and partner influence friendship development (i.e., who is more likely to initiate and end friendships, and who is more likely to be the target of friendship initiation and termination). We also discuss dyadic effects, such as personality similarity, on friendship development. Throughout this review, we draw on the literature on personality and romantic relationships to identify the most important gaps in the literature on personality and friendships. Our review suggests that agreeableness has the most consistent effects on both romantic relationships and friendships, followed by neuroticism. Extraversion, conscientiousness, and openness to experience have all been shown to influence relationship development, but their effects are inconsistent. We end with a call for more research on friendship beyond the role of personality traits and suggestions for specific future directions. [ABSTRACT FROM AUTHOR]

Who are the people who maintain satisfying friendships? And, what are the behaviours that might explain why those people achieve high friendship satisfaction? We examined the associations between personality (self-reports and peer-reports) and friendship satisfaction (self-reports) among 434 students. We also examined whether role personality (how people act with their friends) and quantity and quality of social interactions using ecological momentary assessment mediate the associations between personality and friendship satisfaction. Extraversion, agreeableness, conscientiousness and (low) neuroticism were associated with higher levels of friendship satisfaction. These associations could not be accounted for by individual differences in role personality. In addition, our results suggest that quantity of time spent with friends and quality of friend interactions (depth of conversation, self-disclosure and lack of emotion suppression), although associated with friendship satisfaction, do not account for the associations between trait personality and friendship satisfaction. Future research should examine other potential interpersonal processes that explain why some people are more satisfied with their friendships than others and the consequences of friendship satisfaction (e.g. for well-being). Copyright © 2015 European Association of Personality Psychology [ABSTRACT FROM AUTHOR]