Notes, Comments and Preliminary results Jun 14 2013 Mario Andres Fernandez and Douglas Shaw   Willingness to pay for intervention policies related to HIV/AIDS: a theoretical framework with endogenous risk, perceived effectiveness and altruism   Abstract  Contact Information  Citation  Full Text  -  Note   Jun 03 2006 W. Douglass Shaw , Andres Silva and Rodolfo M. Nayga, Jr.   Health benefits and uncertainty: an experimental analysis of the effects of risk presentation on auction bids for a healthful product   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result