References

Akerlof, G. (1970, August). The market for lemons: Qualitative uncertainty and the market mechanism. Quarterly Journal of Economics, 488-600.

Baron, D. P. & Besanko, D. (1987, Winter). Monitoring, moral hazard , asymmetric information, and risk sharing in procurement contracting. The RAND Journal of Economics, 18 (4), 509-532.

Bellman, S., Johnson, E. J., & Lohse, G.L. (2001). To opt-in or opt-out ? It depends on the question. Communications of the ACM , 44 (2), 25-27.

Chao, H. & Wilson, R. (1987, December). Priority service: Pricing, investment, and market organization. The American Economic Review, 77 , 899-916.

Godin, S. (1999). Permission marketing: Turning strangers into friends, and friends into customers. New York: Simon & Schuster.

Gopal, R.D., Tripathi, A.K., & Walter, Z. D. (2002). Economic analysis of unsolicited commercial e-mail. Working Paper, Department of Operations and Information Management, University of Connecticut.

Gopal, R.D., Tripathi, A.K., & Walter, Z. D. (2003). Economic of first-contact e-mail advertising. Working Paper, Department of Operations and Information Management, University of Connecticut.

Gopal, R.D., Walter, Z. D., & Tripathi, A.K. (2001). Admediation: New horizons in effective e-mail advertising. Communications of the ACM , 44 (12), 91-96.

Harris, M. & Raviv, A. (1981). A theory of monopoly pricing schemes with demand uncertainty. The American Economic Review, 71 , 347-365.

Hof, R. (2000, May 15). Shoppers: Take charge! Business Week .

Krishnamurthy, S. (2000). Permission marketing: Turning strangers into friends, and friends into customers. Journal of Marketing Research , 37 (4), 525-527.

Krishnamurthy, S. (2001). A comprehensive analysis of permission marketing. Journal of Computer Mediated Communication , 6 (2). Retrieved from: http://www.ascusc.org/jcmc/vol6/issue2/krishnamurthy.html

Marshal, J. M. (1976, December). Moral hazard. The American Economic Review, 66 (5), 880-890.

Png, I.P.L. (1991, October). Most-favored-customer protection versus price discrimination over time. The Journal of Political Economy, 99 (5), 1010-1028.

Schlosberg, J. (2000). As e-mail ads get respectable, spending goes through the roof. e-Marketer. Retrieved from: http://www.emarketer.com/eservices/email_medialife.htm

Tezinde, T., Smith, B., & Murphy, J. (2002). Getting permission: Exploring factors affecting permission marketing. Journal of Interactive Marketing , 16 (4), 28-36.