"This volume continues the strong tradition of volume I (2002), supplementing it with foundational material and new results on Arrovian social choice. It also includes new material on fairness, rights, and manipulation, making the two volumes a masterful presentation of all the important topics in the field by its leading experts, including three Nobel laureates." --Steven Brams, New York University"This much awaited volume provides authoritative surveys of some of the most important aspects of the theory of social choice and welfare economics. It will be a highly valuable resource for scholars interested in this area." --Prasanta K. Pattanaik, University of California, Riverside"Social choice theory has produced some of the most powerful (and beautiful) findings in theoretical social science. This long-awaited volume will be a valuable resource to both students and scholars interested in exploring this important field." --Eric Maskin, Nobel Laureate in Economics