%0 Report %A Elias, Julio %A Lacetera, Nicola %A Macis, Mario %T Efficiency-Morality Trade-Offs in Repugnant Transactions: A Choice Experiment %D 2016 %8 2016 Sep %I Institute of Labor Economics (IZA) %C Bonn %7 IZA Discussion Paper %N 10187 %U https://www.iza.org/publications/dp10187 %X 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 deontological to strongly consequentialist; the median respondent would support payments by a public agency if they increased the annual kidney supply by six percentage points, and private transactions for a thirty percentage-point increase. Fairness concerns drive this difference. Our findings suggest that cost-benefit considerations affect the acceptance of morally controversial transactions, and imply that trial studies of the effects of payments would inform the public debate. %K repugnant transactions %K efficiency %K morality %K markets %K preferences