Societies prohibit many transactions considered morally repugnant, although potentially efficiency-enhancing. We conducted an online choice experiment to characterize preferences for the morality and efficiency of payments to kidney donors. Preferences were heterogeneous, ranging from...

The growing demand for plasma, especially for the manufacture of therapeutic products, creates an urgent need for a careful discussion on the relative merits of different procurement and allocation systems in a way that addresses the increasing demand while abiding by the prevailing moral values...