“…The critical review from thirty journals on "generosity" reveals that being generous is motivated by pure altruistic reasons (empathy to help others) (Hur, 2013;Kandul, 2016;Sharp & Randhawa, 2014), intrinsic incentives (the feeling of pleasure, "Warm Glow", and being more connected to humankind) (Declerck et al, 2013;Greenberg, 2014;Hur, 2013;Kandul, 2016;Liu &Hao, 2017;Llamas &Uth, 2016;Lynn, 2015;Natter & Kaufmann, 2015;Sharp & Randhawa, 2014), and extrinsic incentives (hoping for reciprocity, increase reputation, and avoiding social sanction) (Greenberg, 2014;Hur, 2013;Natter & Kaufmann, 2015).…”