List of contributors; Foreword Her Royal Highness The Princess Royal; Introduction R. A. Hinde and J. Groebel; Part I. Cooperation In Animals and Man: Editorial; 1. Help, cooperation and trust in animals A. H. Harcourt; 2. Culture and cooperation R. Boyd and P. J. Richerson; Part II. The Development of Prosocial Propensities: Editorial; 3. The development and socialization of prosocial behaviour P. A. Miller, J. Bernzweig, N. Eisenberg and R. A. Fabies; 4. Cross-cultural differences in assertiveness/competition vs. group loyalty/cooperation H. C. Triandis; 5. The development of prosocial behaviour in large-scale collective societies: China and Japan H. W. Stevenson; 6. The learning of prosocial behaviour in small-scale egalitarian societies: an anthropological view E. Goody; Part III. Situational and Personality Determinants of Prosocial Behaviour: Editorial; 7. Situational and personality determinants of the quantity and quality of helping J. Fultz and R. B. Cialdini; 8. Perceiving the causes of altruism W. C. Swap; 9. Altruism J. Heal; 10. Complications and complexity in the pursuit of justice S. D. Clayton and M. J. Lerner; Part IV. Trust, Commitment and Cooperation: Editorial; 11. The dynamics of interpersonal trust: resolving uncertainty in the face of risk S. D. Boon and J. G. Holmes; 12. Commitment old and new: social pressure and individual choice in making relationships last M. Lund; 13. Cooperation in a microcosm: lessons from laboratory games D. A. Good; 14. Determinants of instrumental intra-group cooperation J. M. Rabbie; Part V. Cooperation Between Groups: Editorial; 15. Changing assumptions about conflict and negotiation J. Z. Rubin; 16. Cooperation between groups H. Feger; 17. The role of UNESCO in the development of international cooperation F. Mayor; 18. US-Soviet cooperation against terrorism: common ground I. Beliaev and J. Marks; 19. US policy towards the Soviet Union from Carter to Bush E.-O. Czempiel; Name index; Subject index.