Acquiring a better understanding of what drives pro-environmental and sustainable behaviour is important for both researchers and practitioners alike. The purpose of this paper is to explore the moderating role of locus of control and self-construal on the relationship between pro-environmental beliefs and pro-environmental consumer behaviour. We explicitly model the endorsement of the New Ecological Paradigm (NEP) as a predictor of three specific types of environmental behaviour—travel, purchasing and day to day activities. The results show a positive and significant association between the endorsement of NEP and a person’s pro-environmental traveling behaviour, purchasing behaviour and day to day activities. Moreover, we find that the effects are moderated by a person’s locus of control, specifically, it remains positive and significant only for people with an internal locus of control. However, we found no moderating effect of a person’s self-construal on the association between NEP and pro-environmental behaviour. The findings are important in the continuing work to understand what is limiting consumers to behave according to their beliefs. Practical and theoretical implications of the results as well as suggestions for future research are presented.

Educating and changing consumers´ attitudes towards sustainable and more environmentally friendly holiday choices is often seen as a key challenge for the tourism industry. The primary objective of this study is, therefore, to increase our understanding of psychological mechanisms underlying consumers’ responses to communication that aims to alter their holiday behavior in a more sustainable direction. Drawing on reactance theory, as well as first- and third-person perception effects, we present an experimental study designed to test how different levels of message assertiveness (i.e., hard versus soft pressure) affect consumers’ intentions to change their traveling behavior. The results suggest that when respondents are presented with a socially desirable message, their individual intentions to change one’s holiday plans are affected to a greater extent compared to their perception of how others would react to such cuing. Furthermore, this first-person effect is most prominent under lower levels of message assertiveness, and when conveyed messages address socially desirable behavior in line with one’s current values. Hard pressure messages loaded with highly assertive prompts, on the other hand, are likely to evoke motivational reactance, especially when a consumer holds a weaker attitude towards sustainability and environmental issues. Practical and theoretical implications of the provided findings as well as avenues for future research are discussed.

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