1. Akerlof, G. A. (1982). Labor contracts as partial gift exchange. Quarterly Journal of Economies, XCVII(4), 543–569.
2. Alchian, A., & Demsetz, M. (1972). Production, information costs and organisation. American Economic Review, 72(5), 777–795.
3. Civil Society Working Paper;S Almond,2000
4. Almond, S., & Kendall, J. (2001). Low pay in the UK: The case for a three sector comparative approach. Annals of Public and Cooperative Economics, 72(1), 45–76.
5. Bacchiega, A., & Borzaga, C. (2001). Social enterprises as incentive structures: An economic analysis. In C. Borzaga & J. Defourny (Ed.), The emergence of social enterprise (pp. 273–295). London: Routledge.