1. The market for ‘lemons’: quality uncertainty and the market mechanism;Akerlof;Quarterly Journal of Economics,1970
2. Political and economic evaluation of social effects and externalities;Arrow,1971
3. The implications of tipping for economics and management;Azar;International Journal of Social Economics,2003
4. Azar, O.H., 2003b. Is future service a reason for tipping? Theory and evidence. Working paper, Ben-Gurion University of the Negev.
5. Optimal monitoring with external incentives: the case of tipping;Azar;Southern Economic Journal,2004