Man on reciprocity, 1956. ,
Structural and motivational approaches to social exchange, Social exchange: Advances in theory and research, pp.197-124, 1980. ,
The effect of race and need on helping behavior, The Journal of Social Psychology, vol.89, pp.73-77, 1973. ,
Exchange and power in social life, 1964. ,
The effectiveness of an altruistic appeal in the presence and absence of favors, Communication Monographs, vol.68, pp.340-346, 2001. ,
Improving mail survey response rates using chocolate and replacement questionnaires, Public Opinion Quarterly, vol.73, pp.368-378, 2009. ,
The tea bag experiment: More evidence on incentives in mail surveys, Journal of the Market Research Society, vol.40, pp.347-351, 1998. ,
Reciprocal favor exchange and compliance, Social Influence, vol.1, pp.169-184, 2006. ,
Effects of time on the norm of reciprocity, Basic and Applied Social Psychology, vol.19, pp.91-100, 1997. ,
The norm of reciprocity as an internalized social norm: Returning favors even when no one finds out, Social Influence, vol.4, pp.11-17, 2009. ,
Reciprocal concessions procedure for inducing compliance: The door-in-the-face technique, Journal of Personality and Social Psychology, vol.31, pp.206-215, 1975. ,
Using a contingent, nonmonetary incentive to increase the response rate to a personally-initiated, self-administered survey among college students, Influence: Science and practice, vol.21, pp.1-9, 2009. ,
Reciprocity and the belief in a just world, Personality and Individual Differences, vol.43, pp.589-596, 2007. ,
The effectiveness of a chocolate incentive in a mail survey of New Zealand farmers, Marketing Bulletin, vol.21, pp.1-9, 2010. ,
Handbook of social resource theory: Theoretical extensions, empirical insights, and social applications, critical issues in social justice, vol.15, 2012. ,
The norm of reciprocity: A preliminary statement, American Sociological Review, vol.25, pp.161-178, 1960. ,
Effect of intentionality on willingness to reciprocate a favor, Journal of Experimental Social Psychology, vol.8, pp.99-111, 1972. ,
Indebtedness: An adverse aspect of asking for and receiving help, Sociometry, vol.34, pp.290-301, 1971. ,
Effect of victim's need and previous accusation of theft upon bystander's reaction to theft, The Journal of Social Psychology, vol.112, pp.41-49, 1980. ,
Social behavior as exchange, American Journal of Sociology, vol.63, pp.597-606, 1961. ,
The semantics of asking a favor: Asking for help in three countries, The Journal of Social Psychology, vol.110, pp.3-7, 1980. ,
Effect of an unexpected small favor on compliance with a survey request, Journal of Business Research, vol.68, pp.56-59, 2015. ,
The gift, 1966. ,
The personal norm of reciprocity, European Journal of Personality, vol.17, pp.251-283, 2003. ,
Effects of a favor and liking on compliance, Journal of Experimental Social Psychology, vol.7, pp.627-639, 1971. ,
The origin of virtue: Human instincts and the evolution of cooperation, 1997. ,
The evolution of reciprocal altruism, The Quarterly Review of Biology, vol.46, pp.35-57, 1971. ,
The effect of a favor on public and private compliance: How internalized is the norm of reciprocity?, Basic and Applied Social Psychology, vol.21, pp.251-259, 1999. ,
The moral animal: Evolutionary psychology and everyday life, 1994. ,