“…Heterogeneity in these preferences has been linked to a number of demographic attributes (Andreoni and Vesterlund, 2001;List, 2004), personality traits (Volk et al, 2012) as well as differences in beliefs (Fischbacher and Gächter, 2010). Recent experimental evidence (Piovesan and Wengström, 2009;Kocher et al, 2012;Rand et al, 2012;Duffy and Smith, 2012;Nielsen et al, 2014) suggests that the extent of cooperative behavior is additionally influenced by the type of cognitive system that potential contributors employ when considering their contribution choice. Two principal types of cognitive systems are distinguished by the reigning 'dual process' theories of the mind (Fudenberg and Levine, 2006;Loewenstein and O'Donoghue, 2007;Kahneman, 2011): System I, which arrives at decision through affective or intuitive processes, and System II, which generates decisions based on deliberative or calculated reasoning (Kahneman, 2003;Evans, 2003Evans, , 2008Loewenstein et al, 2008).…”