The papers in this collection were selected from nearly 200 that were presented at the 50 sessions of the second annual International Conference on Socio-Economics held at The George Washington University in Washington, D.C. March 1990. They reflect the great interest that socio-economics has inspired in the few years since the Society for the Advancement of Socio-Economics was founded in 1989. The papers represent the stimulating dialogue among psychologists, sociologists, political scientists, philosophers, economists, and students of finance and business administration. The authors are communicating across the frontiers of established disciplines to address enduring questions on economic theory and policy, and they aim to liberate the study of economics from the straitjacket of the neoclassical approach.