“…The environmental factors that encourage creativity include tolerance, moderation and abundant resources (Runco, 2014). Thus, a supportive social environment such as a favourable organizational climate and humanistic leadership directly influences intrinsic motivation, synergistic extrinsic motivation and, in turn, the development of creativity (Ekvall & Ryhammar, 1998;Runco, Acar, & Cayirdag, 2017;Zhou & Shalley, 2003). As suggested by prosocial motivation studies, aspects of supportive leadership such as supportive supervision (Oldham & Cummings, 1996;Wu, McMullen, Neubert, & Yi, 2008), creativitysupportive behaviour and developmental feedback may strongly trigger employees' prosocial motivation because of role-modelling and reciprocity mechanisms (Zhou & Shalley, 2003).…”