Papers and Proceedings of the Hundred and Fifth Annual Meeting of the American Economic Association || Altruism as a Problem Involving Group versus Individual Selection in Economics and Biology
Paul A. SamuelsonVolume:
83
Language:
english
Journal:
The American Economic Review
DOI:
10.2307/2117655
Date:
May, 1993
File:
PDF, 189 KB
english, 1993