Donation;
Natural field experiment;
Reciprocity;
RECIPROCITY;
ECONOMICS;
FAIRNESS;
BEHAVIOR;
D O I:
10.1016/j.econlet.2011.10.008
中图分类号:
F [经济];
学科分类号:
02 ;
摘要:
We add a gift in appreciation of the subject's contribution to a social reference treatment successfully proven to trigger higher donations, and find that the share of people contributing decreases significantly, thereby eroding the original treatment's capacity to increase donations. (C) 2011 Elsevier B.V. All rights reserved.