“…However, the absence of any effect of risk orientation in the prisoner's dilemma does not match with this idea (especially since social value orientations have produced strong and reliable effects in social dilemmas; see Van Lange, De Cremer, Van Dijk, and Van Vugt, 2007). To be sure, we also measured social value orientations in our study, and did not find any relationship with risk orientation or cooperation (see also Kanagaretnam, Mestelman, Nainar, & Shehata, 2009). Nevertheless, for future research it may be useful to investigate the connection between risk orientation and other constructs (e.g., trust, sensation seeking).…”