Pledges and how social influence shapes their effectiveness

Pledges are used to signal the intention to act in a socially desirable way. In this study, we examine what role social influence plays in the decision to pledge. In a laboratory experiment, subjects can make a pledge to contribute to a public good in the socially optimal way. Across treatment conditions, we vary the way in which the pledges are elicited. Hence, the degree of social influence on pledge-making is manipulated and its impact can be examined. We find that when individuals are aware that the majority of other subjects decided to pledge, they are likely to conform and also make the pledge. The emergence of such a critical mass can be stimulated by (institutional) design, namely by determining the elicitation order on the basis of previous behavior. Overall, this commitment nudge is effective. Both socially-oriented and previously not socially-oriented subjects modify their behavior after the pledge

Mapping moral pluralism in behavioural spillovers : A cross-disciplinary account of the multiple ways in which we engage in moral valuing

In this article, we reflect critically on how moral actions are categorised in some recent studies on moral spillovers. Based on classic concepts from moral philosophy, we present a framework to categorise moral actions. We argue that with a finer classification of moral values, associated behaviour is better understood, and this understanding helps to identify the conditions under which moral licensing takes place. We illustrate our argument with examples from the literature on pro-environmental behaviours. Moral spillovers are frequently studied in this behavioural domain and to understand what causes their occurrence is highly (policy) relevant if we wish to promote sustainable behaviour

Other-regarding preferences and pro-environmental behaviour: an interdisciplinary review of experimental studies

Pro-environmental behaviour (PEB) is often promoted by reinforcing or highlighting own benefits. However, considering that actors also care about the outcomes for others (i.e. they hold other-regarding preferences), PEB may also be encouraged by addressing these other-regarding preferences. In this paper, we review the results from social science experiments where interventions addressing other-regarding preferences were used to promote PEB. Based on our synthesis, we conclude that addressing other-regarding preferences can be effective in promoting (various types of) PEB in some, but not in all instances. Whether an intervention was effective depended inter alia on the pre-established preferences, cost structures and the perceived cooperation of others. Effective interventions included the provision of information on behavioural consequences, perspective-taking, direct appeals, framing and re-categorization. The interventions worked by activating other-regarding preferences, raising awareness about adverse consequences, evoking empathic concern and expanding the moral circle. We propose to take these findings as an impulse to examine policy instruments and institutions in terms of whether they activate and strengthen other-regarding preferences, thereby enabling collective engagement in PEB

Distance to climate change consequences reduces willingness to engage in low-cost mitigation actions-Results from an experimental online study from Germany

Adverse consequences of climate change often affect people and places far away from those that have the greatest capacity for mitigation. Several correlational and some experimental studies suggest that the willingness to take mitigation actions may diminish with increasing distance. However, the empirical findings are ambiguous. In order to investigate if and how socio-spatial distance to climate change effects plays a role for the willingness to engage in mitigation actions, we conducted an online experiment with a German population sample (n = 383). We find that the willingness to sign a petition for climate protection was significantly reduced when a person in India with a name of Indian origin was affected by flooding, as compared to a person in Germany with a name of German origin. Distance did not affect donating money to climate protection or approving of mitigation policies. Our results provide evidence for the existence of a negative effect of distance to climate change consequences on the willingness to engage in low-cost mitigation actions. Investigating explanations for such an effect, we find that it can be attributed to the spatial rather than the social dimension of distance. Moreover, we find some cautious evidence that people with strong racist attitudes react differently to the distance manipulations, suggesting a form of environmental racism that could also reduce mitigation action in the case of climate change

Asymmetric heterogeneities and the role of transfers in a public goods experiment

Previous experimental research has shown that cooperation is especially challenging in situations involving heterogeneous actors. Here, we investigate the effect of allowing unconditional transfers in a public goods game when actors differ asymmetrically in their endowments and productivity levels. Under this setup, full efficiency, in terms of highest maximum group payoff, can only be achieved with the full transfer of resources from the players with high endowment and low productivity to the players with high productivity but low endowment. We show that, in this setting, the availability of transfers enhances public good provision and cooperation. The voluntary transfer serves as a powerful cooperative signal, leading to high contribution rates among the recipients. However, if the transfer possibility is given but not used, cooperation erodes

Social norms and climate-friendly behavior of adolescents

Adolescents are the decision-makers of the future, and as educational research shows, behaviors, habits, and attitudes established at young age strongly shape behavior in adulthood. Therefore, it is important to understand what factors shape young people’s climate-relevant behavior. In this study, we examine how information about peer behavior affects adolescents’ perception of prevailing social norms and own decision-making. Experimentally, we manipulated whether adolescents received information about other young people’s (lack of) support for climate protection, operationalized as a donation to a CO2 offsetting scheme. We find that empirical expectations shifted for all age groups when the information revealed that peers donated nothing or only small amounts. Donation behavior and the normative assessment, however, changed only in the younger age groups. Our study illustrates the caution that must be exercised when others’ behavior becomes visible or is deliberatively made salient in order to induce behavioral change, especially among young individuals

Social norms and climate-friendly behavior of adolescents

Adolescents are the decision-makers of the future, and as educational research shows, behaviors, habits, and attitudes established at young age strongly shape behavior in adulthood. Therefore, it is important to understand what factors shape young people’s climate-relevant behavior. In this study, we examine how information about peer behavior affects adolescents’ perception of prevailing social norms and own decision-making. Experimentally, we manipulated whether adolescents received information about other young people’s (lack of) support for climate protection, operationalized as a donation to a CO2 offsetting scheme. We find that empirical expectations shifted for all age groups when the information revealed that peers donated nothing or only small amounts. Donation behavior and the normative assessment, however, changed only in the younger age groups. Our study illustrates the caution that must be exercised when others’ behavior becomes visible or is deliberatively made salient in order to induce behavioral change, especially among young individuals

Perspective-taking with affected others to promote climate change mitigation

Prior evidence suggests that perspective-taking may promote pro-environmental behavior, at least for low-cost behaviors or local environmental problems. Climate change, however, requires costly mitigation efforts and is a global problem. Thus, in this study, we examine whether perspective-taking in the context of climate change is effective in promoting mitigation behaviors, including actual and/or costly behaviors, the mechanisms through which perspective-taking works, and if the distance to the person adversely affected by climate change matters for the effect. We conducted an online experiment with a non-student sample from Germany (n = 557), utilizing a 2 × 2 factorial design, to investigate the impact of perspective-taking and distance on three outcome measures: a climate donation, signing a petition, and approval of mitigation policies. We find that perspective-taking does not promote these mitigation behaviors, yet it raises the degree perspective-takers value and – for close others – feel connected with the affected person. Exploratory analysis shows that dispositional perspective-taking and empathic concern are correlated with mitigation behaviors

Perspective-taking with affected others to promote climate change mitigation

Prior evidence suggests that perspective-taking may promote pro-environmental behavior, at least for low-cost behaviors or local environmental problems. Climate change, however, requires costly mitigation efforts and is a global problem. Thus, in this study, we examine whether perspective-taking in the context of climate change is effective in promoting mitigation behaviors, including actual and/or costly behaviors, the mechanisms through which perspective-taking works, and if the distance to the person adversely affected by climate change matters for the effect. We conducted an online experiment with a non-student sample from Germany (n = 557), utilizing a 2 × 2 factorial design, to investigate the impact of perspective-taking and distance on three outcome measures: a climate donation, signing a petition, and approval of mitigation policies. We find that perspective-taking does not promote these mitigation behaviors, yet it raises the degree perspective-takers value and – for close others – feel connected with the affected person. Exploratory analysis shows that dispositional perspective-taking and empathic concern are correlated with mitigation behaviors

Fostering collective action through participation in natural resource and environmental management: An integrative and interpretative narrative review using the IAD, NAS and SES frameworks

Solving humanity's social-environmental challenges calls for collective action by relevant actors. Hence, involving these actors in the policy process has been deemed both necessary and promising. But how and to what extent can participatory policy interventions (PIs) foster collective action for sustainable environmental and natural resource management? Lab and lab-in-the-field experiments on co-operation in the context of collective action challenges (i.e. social dilemmas) and case study research on participatory processes both offer insights into this question but have hitherto mainly remained unconnected. This article reviews insights from these two streams of literature in tandem, synthesising and analysing them using the institutional analysis and development (IAD) framework in combination with the network of action situations (NAS) framework and the social-ecological systems (SES) framework. We thus perform an integrative and interpretative narrative review to draw a richer and more nuanced picture of PIs: their potential impacts, their (institutional and behavioural) mechanisms and challenges, and caveats and recommendations for their design and implementation. Our review shows that PIs can indeed foster collective action by (a) helping the relevant actors craft suitable and legitimate institutional arrangements and (b) addressing and/or influencing actors' attributes of relevance to collective action, namely their individual and shared understandings, beliefs and preferences. To fulfil this potential, the organisers and sponsors of PIs must address and link to the broader context through soundly designed and implemented processes. Complementary follow-up, enforcement and conflict resolution mechanisms are necessary to nurture, reassure and sustain understandings, beliefs and preferences that undergird trust-building and collective action. The conceptual framework developed for the review can help researchers and practitioners further assess these insights, disentangle PIs' mechanisms and impacts, and integrate the research and practice of participatory governance and collective action