Discussion
Findings and theoretical contribution
This research addresses the role of psychological empowerment in proenvironmental consumer behaviour, focussing on climate protection. Study 1 showed that introducing psychological empowerment as a moderator of the behavioural effects of PN into an empirical model based on the VBN framework (Stern et al., 1999; Stern, 2000), significantly increased the predictive power of the model. Findings constitute the first empirical confirmation of previous theoretical proposition in the literature, arguing that psychological consumer empowerment may also play a relevant role as a motivational factor in proenvironmental consumption (Barr et al., 2011; Geller, 1995; McGregor, 2005; Spaargaren and Mol, 2008; Spaargaren and Oosterveer, 2010; Thøgersen, 2005). Psychological empowerment had not previously been studied empirically as either an antecedent or outcome of proenvironmental behaviour. The scarce prior literature on the subject did also not propose integrating empowerment into VBN.
The observed significant behavioural effect of psychological empowerment is in line with the extant literature confirming empowerment as an important antecedent of employee behaviour (Carless, 2004; Chiang and Hsieh, 2012; Seibert et al., 2011; Siegall and Gardner, 2000; Spreitzer et al., 1999; Thomas and Velthouse, 1990; Yoo, 2017) and a motivational factor in consumer decision processes (Fuchs and Schreier, 2011; Füller et al., 2009; Labrecque et al., 2013; Pires et al., 2006; Shaw et al., 2006; Wathieu et al., 2002). In particular, the fact that psychological empowerment moderated normative influences on behavioural intentions supports previous research studying psychological empowerment as a moderator of the relationships between variables such as leadership influences and follower’s innovative behaviour, transformational leadership and job satisfaction, role ambiguity/ conflict and employee’s affective commitment, as well as leader-member-exchange relationship and job outcomes (Ackfeldt and Malhotra, 2013; Fuller et al., 1999; Harris et al., 2009; Pieterse et al., 2010).