In this rigorous and well-crafted work, Kenneth Wolpin examines the role of theory in inferential empirical work in economics and the social sciences in general--that is, any research that uses raw data to go beyond the mere statement of fact or the tabulation of statistics. He considers in...

"If you do not think about the future, you cannot have one," the British author John Galsworthy wrote at the beginning of this century. In An Agenda for the 21st Century, Rushworth Kidder, award-winning columnist for the Christian Science Monitor, has taken up Galsworthy's challenge. He conducts...