“…Overall, our empirical results urge to consider with care the effects of symbolic awards as tools to influence (prosocial) behavior, which may go against expectations (Cheema et al, 2019;Robinson et al, 2019). Indeed, the effectiveness of awards cannot be given for granted; this may be due, for instance, to a reduction in the signaling content of donation (which, after the introduction of rewards may be thought to be driven by the aim to get the award), or to the motivation crowding out (Frey and Jegen, 2001;Bowles and Polania-Reyes, 2012;Chao, 2017) of awards when donors are intrinsically motivated to donate, which is reasonably the case for our sample.…”