“…The SHH has been supported by studies in the realm of cooperation (Rand, 2016(Rand, , 2019, honesty (Capraro, 2017), and reciprocity (Hallsson et al, 2018). However, the SHH has been challenged by other studies and meta-analyses which do not support the intuitive nature of cooperation (Alos-Ferrer and Garagnani, 2020;Tinghög et al, 2013;Bouwmeester et al, 2017) In most of these studies, the identification of 'intuitive' replies is obtained via time constraints, cognitive load, ego depletion, or procedural priming (for a thorough review, see Capraro, 2019). A time-constrained (cognitive loaded, depleted, appropriately primed) individual is assumed to rely more on intuitive, System I than on deliberate, System II cognitive strategies.…”