A volume in the Social Science Frontiers series, which are occasional publications reviewing new fields for social science development.
These occasional publications seek to summarize recent work being done in particular areas of social research, to review new developments in the field, and to indicate issues needing further investigation. The publications are intended to help orient those concerned with developing current research programs and broadening the use of social science in the policy-making process.
A Volume in the the Russell Sage Foundation's Social Science Frontiers Series
MICHAEL INBAR was lecturer, Hebrew University, Jerusalem.