Published by Johns Hopkins University Press for IFPRI. 275 pages,paperback $21.95 ISBN 1-8018-6604-9,hardcover $51.95 ISBN 1-8018-6603-0 Agricultural research and development will be key to increasing the quantity and quality of the world's food in the 21st century. This book examines the changes affecting agricultural science policy, including issues such as the environment, genetic diversity, food safety, poverty,human health, public versus private responsibilities, and intellectual property rights.