Paying to Be Nice: Consistency and Costly Prosocial Behavior. - Ayelet Gneezy; Alex Imas; Amber Brown; Leif D. Nelson; Michael I. Norton (Manag. Sci., 2012)

Signaling Virtue: Charitable Behavior Under Consumer Elective Pricing. - Minah H. Jung; Leif D. Nelson; Uri Gneezy; Ayelet Gneezy (Mark. Sci., 2017)