Cooperation and Helping Behavior: Theories and Research deals with theory and research with respect to positive forms of social behavior, with emphasis on cooperation and helping behavior. Topics covered include social values and rules of fairness; cognitive processes underlying cooperation; the effects of intergroup competition and cooperation on intragroup and intergroup relationships; and altruism and the problem of collective action. Comprised of 18 chapters, this book begins with an overview of theories and research on cooperation and helping behavior, followed by a discussion on the problem of interdependence within the context of interpersonal relations. Subsequent chapters deal with cognitive processes affecting cooperation; motivational and cognitive antecedents of cooperation; the effects of intergroup competition and cooperation on intragroup and intergroup relationships; and opportunities for gaining satisfactory solutions to conflict through negotiation. Social trap analogs of social dilemmas such as the energy crisis and overpopulation are also examined, together with altruism and the problem of collective action; justice-motive theory; arousal and cost-reward theory of bystander intervention; and the psychological aspects of receiving help. The final chapter considers types of psychological mechanisms underlying prosocial behavior and its development. This monograph will be of value to students and researchers in the field of psychology.