In the pre-Christmas shopping season prosocial subjects almost donate 50% less compared to prosocials in summer; the higher prosocials’ self-reported stress level, the lower the donations; no "donation fatigue" effect

Müller Stephan, Rau HA (2019) Too cold for warm glow? Christmas-season effects in charitable giving. PLoS ONE 14(5): e0215844. https://doi.org/10.1371/journal.pone.0215844

Abstract: This paper analyzes seasonal effects and their potential drivers in charitable giving. We conduct two studies to analyze whether donations to the German Red Cross differ between the Christmas season and summer. In study 1 we find that in the pre-Christmas shopping season prosocial subjects almost donate 50% less compared to prosocials in summer. In study 2 we replicate the low donations in the Christmas season. In an extensive questionnaire we control for several causes of this effect. The data suggest that the higher prosocials’ self-reported stress level, the lower the donations. The higher their relative savings, the lower the giving. Our questionnaire rules out that “donation fatigue” matters. That is, donations do not depend on the number of charitable campaigns subjects are confronted with and their engagement in these activities during Christmas season outside the lab.