Altruism and prosocial behavior in groups - Thye, Shane R.; Lawler, Edward J. (Emerald, 2009)
Addresses a range of phenomena related to the general question of when people behave in an altruistic fashion. This book contains topics that include how empathy induced altruism can actually be a threat to the some larger collective good, and the role of egoism in the production and maintenance of social order.