1. Acs, Z.J. and Phillips, R.J. (2002) Entrepreneurship and philanthropy in American capitalism. Small Business Economics 19: 178–204.
2. Akerlof, G.A. (1984) An Economic Theorist's Book of Tales: Essays that Entertain the Consequences of New Assumptions in Economic Theory. New York: Cambridge University Press.
3. Allen, P. (2007 April 23) Changing face of the big spenders. The Guardian, p. 3.
4. Andreoni, J. (1988) Privately provided public goods in a large economy: The limits of altruism. Journal of Public Economics 35 (1): 57–73.
5. Auten, G.E., Clotfelter, C.T. and Schmalbeck, R.L. (2002) In: J.B. Slemrod (ed.) Does Atlas Shrug?: The Economic Consequences of Taxing the Rich. Cambridge, MA: Harvard University Press.