1. Andreoni, J. (1990). Impure altruism and donations to public goods: A theory of warm-glow giving. The Economic Journal, 100, 464–477.
2. Andreoni, J., Harbaugh, W. T., & Vesterlund, L. (2008). Altruism in experiments. In S. Durlauf & L. E. Blume (Eds.), The new Palgrave dictionary in economics (2nd ed., pp. 105–108). New York: Palgrave Macmillan.
3. Arrow, K. J. (1973). Social responsibility and economic efficiency. Public Policy, 21, 303–317.
4. Bala, V., & Long, N. V. (2005). International trade and cultural diversity with preference selection. European Journal of Political Economy, 21, 143–162.
5. Bergstrom, T., Blume, L., & Varian, H. (1986). On the private provision of public goods. Journal of Public Economics, 29, 25–49.