Showing papers by "Rüdiger Hahn published in 2019"

Understanding Collaborative Consumption: An Extension of the Theory of Planned Behavior with Value-Based Personal Norms

Abstract: Collaborative consumption is proposed as a potential step beyond unsustainable linear consumption patterns toward more sustainable consumption practices. Despite mounting interest in the topic, little is known about the determinants of this consumer behavior. We use an extended theory of planned behavior to examine the relative influence of consumers’ personal norms and the theory’s basic sociopsychological variables attitudes, subjective norms, and perceived behavioral control on collaborative consumption. Moreover, we use this framework to examine consumers’ underlying value and belief structure regarding collaborative consumption. We measure these aspects for 224 consumers in a survey and then assess their self-reported collaborative consumption behavior in a second survey. Our structural model fits the data well. Collaborative consumption is more strongly—through intentions—influenced by personal norms and attitudes than by subjective norms. Personal norms to consume collaboratively are determined by consumers’ altruistic, biospheric, and egoistic value orientations. Cost savings, efficient use of resources, and community with others are found to be consumers’ attitudinal beliefs underlying collaborative consumption. We conclude that collaborative consumption can be pin-pointed neither as a mere form of economic exchange nor as a primarily normative form of sharing resources. Instead, collaborative consumption is determined by economic/egoistic (e.g., cost savings) and normative (e.g., altruistic and biospheric value orientations) motives. Implications for collaborative consumption research, the theory of planned behavior, and practitioners are discussed.

From SLCA to Positive Sustainability Performance Measurement: A Two‐Tier Delphi Study

Abstract: Life cycle sustainability assessment (LCSA) currently has a preoccupation with capturing and repairing negative dysfunctions and pathologies instead of fostering positive features that make a human life sustainable and worth living. With the intention to overcome this imbalance, this paper aims at transferring the shift to a positive sustainability performance measurement (PSPM) perspective in industrial ecology. We argue that positive performance is likely to develop from the lens of social life cycle assessment (SLCA), because sustainability is an anthropocentric concept that puts positive benefits to human well‐being (i.e., the social dimension of sustainability) at the center of the analysis. However, the field of SLCA is highly fragmented, without a coherent theoretical understanding and without a clear prioritization of problems and future research directions. Therefore, we engage in an extensive Delphi study with experts from academia and practice to foster a discussion of lessons learned from SLCA for PSPM. In this way, the paper contributes to a more coherent and deeper understanding of both connected fields. The results emphasize that SLCA has become a defensive risk management instrument against reputational damages, whereas PSPM offers the potential to proactively measure and manage positive contributions to sustainable development. We identify three main challenges (definitional, methodological, and managerial) and two main areas of benefits (organizational and societal) and use them to consolidate the debate on SLCA and PSPM and to provide a roadmap for future research.

Contributions to the sustainable development goals in life cycle sustainability assessment: Insights from the Handprint research project

Abstract: The United Nations’ Sustainable Development Goals (SDGs) represent consensual, global scale targets, encouraging not only the fight against unsustainable aspects in society (e. g., poverty or hunger) but also positive contributions to sustainable development (e. g., renewable energy use or human well-being). The SDGs are, however, not per se designed as a performance measurement system for businesses and products. Consequently, research is challenged to develop convincing approaches and indicator systems that capture how businesses contribute to the SDGs. Against this background, the Handprint approach was developed. This paper documents methodological developments of a respective research project and extends the focus from reducing unsustainable, negative business practices toward striving for positive contributions to sustainable development in sustainability assessment and management. We first summarize the status quo of assessing positive contributions to sustainable development in research and practice. While a “Footprint” approach primarily measures negative environmental and/or social impacts, the “Handprint” approach focuses on positive contributions to sustainable development. Second, we illustrate and prioritize core assessment categories and indicators. Third, we describe how a sustainability assessment approach to evaluate positive contributions to sustainable development at the product level was developed and demonstrate its feasibility in a pilot case study.