1. Having less, giving more: The influence of social class on prosocial behavior;P. K. Piff,2010
2. A large scale test of the effect of social class on prosocial behavior;M. Korndörfer,2015
3. Young, selfish and male: Field evidence of social preferences;J. A. List,2004
4. Giving behavior of millionaires;P. Smeets,2015
5. Money as a tool, money as a drug: The biological psychology of a strong incentive;S.E. Lea,2006