A field experiment (N=113,047 participants) manipulated two factors in the sale of souvenir photos. First, some customers saw a traditional fixed price, whereas others could pay what they wanted (including $0). Second, approximately half of the customers saw a variation in which half of the...

Four field experiments examined the quantitative and qualitative forces influencing behaviors under consumer elective pricing called “shared social responsibility” (SSR, Gneezy, Gneezy, Nelson, & Brown, 2010). Under SSR consumers can pay what they want and a percentage of their payment goes...