“…Some of these people also condemned relatively higher offers, which may reflect the importance that people assign to retribution (e.g., that someone who behaved poorly in the past should not receive generosity but should be punished). Our principle component findings are in line with previous research showing that people account for deservingness of moral actors when sharing resources by either reciprocating (Meristo & Surian, 2013;Nowak & Sigmund, 1998;Surian & Franchin, 2017), or exceeding the past favour of their partner (Greenberg, 1982;Ule, Schram, Riedl, & Cason, 2009). Moreover, our findings that a portion of people found rewarding selfish actions to be morally inappropriate, are in line with previous research showing strong individual differences in punishment of selfishness (Crockett, Clark, Lieberman, Tabibnia, & Robbins, 2010;Fehr & Fischbacher, 2004;Fetchenhauer, Schlösser, Lotz, Baumert, & Gresser, 2011).…”