1. Admati, A.R., & Perry, M. (1991). Joint projects without commitment. Review of Economic Studies, 58, 259–276.
2. Anderson, R.M., & May, R.M. (1991). Infectious diseases of humans: dynamics and control. Oxford: Oxford University Press.
3. Andreoni, J. (1998). Toward a theory of charitable fund-raising. Journal of Political Economy, 106(6), 1186–1213.
4. Aylward, R.B., Acharya, A., England, S., Agocs, M., & Linkins, J. (2003a). Polio eradication. In: Smith, R.R., Beaglehole, Woodward, D., & Drager, N. (Eds.), Global public goods for health: health economic and public health perspectives, (pp. 33–53). Oxford: Oxford University Press.
5. Aylward, R.B., Acharya, A., England, S., Agocs, M., & Linkins, J. (2003b). Global health goals: lessons from the worldwide effort to eradicate poliomyelitis. The Lancet, 362, 909–914.