“…Studies on the effects of color on physiological data have also shown that red is more likely to cause arousal than green (Wilson, 1966), and blue calms people more than red (Jacobs and Hustmyer, 1974;Gorn et al, 2004). In addition, in a recent study, the willingness to pay in auctions and negotiations demonstrated the effects of red and blue, with the two mediators being arousal and aggression (Bagchi and Cheema, 2013). Thus, we proposed that red and blue also affect donation behavior.…”