TY - BOOK AU - Campbell, Donald E TI - Incentives : motivation and the economics of information SN - 9780521539746 SN - 200600077 U1 - 302.13 CAM PY - 2006/// CY - Cambridge PB - Cambridge University Press KW - Social choice - Mathematical models N1 - Includes bibliographical references (p. 561-577) and indexes ER -