http://web.stanford.edu/~sambuehl/RepugnanceAER_PP.pdfMore Money, More Problems?
Can High Pay be Coercive and Repugnant?
By SANDRO AMBUEHL, MURIEL NIEDERLE, AND ALVIN E. ROTH
(An exploration on if, and why, third parties object to compensation for participation in medical experiments. Not too dissimilar from compensation for organ selling.)