Although values play a leading role in nearly every explanatory theory in the broad realm of the social and behavioral sciences, very little multidisciplinary research material on values is available. Addressing this need, the editors bring together distinguished social scientists, psychologists, and biologists who collaboratively explore fundamental questions about values: What are the determinants of social values, taboos, and ideologies? What are the determinants of individual values? What is the nature of motivations and rewards? Is there an evolutionary basis for the development of values?