(1) Background: The sharing economy has emerged as a phenomenon widely described by academic literature to promote more sustainable consumption practices such as access over ownership. However, there exists great semantic confusion within academic literature surrounding the term “sharing economy,” which threatens the realisation of its purported sustainability potential. (2) Objective: The aim of this paper is to synthesise the existing academic definitions and propose a definition of the sharing economy from the perspective of sustainability science in order to indicate sharing practices that are consistent with the sustainability claims attributed to the sharing economy. (3) Methods: We conduct a database search to collect relevant academic articles. Then, we leverage qualitative content analysis in order to analyse the authors’ definitions and to synthesise the broad dimensions of the sharing economy in the discourse. (4) Results: We propose the following characteristics, or semantic properties, of the sharing economy for sustainability: ICT-mediated, non-pecuniary motivation for ownership, temporary access, rivalrous and tangible goods. (5) Conclusion: The semantic properties that inform our definition of the sharing economy for sustainability indicate those sharing practices that promote sustainable consumption compared to purely market-based exchanges. This definition is relevant for academics studying the sustainability impacts of the sharing economy in order to promote comparability and compatibility in research. Furthermore, the definition is useful for policy-makers, entrepreneurs, managers and consumers that have the sharing economy on the agenda in order to promote social enterprise and support sustainable consumption.

Food is an essential part of our daily lives, but simultaneously, it is a major contributor to environmental issues. The growing world population and changing diets are expected to further exacerbate the negative impact of food production and consumption. This article explores how sufficiency business strategies, focused on moderating consumption levels, can be implemented in the food industry to curb demand and thereby overall resource consumption. First, a literature and practice review are conducted to create a conceptual framework for sufficiency business strategies in the food industry. Second, a case study approach is taken to explore the application of sufficiency strategies at Oatly, a company offering plant-based alternatives to dairy. Semi-structured interviews and review of the company’s sustainability reports are used as key data sources for the case study. This study contributes to research and practice with a novel framework for business sufficiency strategies in the food industry. Although sufficiency implies consumption moderation, it is suggested that when a company substitutes the consumption of a less sustainable option, growth could be desirable. Future research can expand on viable sufficiency strategies for the private sector, but also strategies to engage different stakeholders, such as government, society, and academia, to accelerate the transition towards a sustainable food system.

Policy-makers are starting to acknowledge the urgent need for policy-intervention to achieve sustainable consumption. However, it is difficult to achieve policy-making that leads to impactful consumption interventions. Generally speaking, sustainable consumption can be achieved in three ways; to reduce consumption, to change consumption, and to improve consumption. These strategies all have their advantages and disadvantages regarding the likelihood for impactful policies to be implemented. Prior research identifies policies with big impact potential for all three of these strategies, but also clearly shows that none of the three strategies has so far been successfully applied to achieve sustainable consumption. Indeed, success remains elusive in each of the strategies to adopt the most impactful policies available due to limited implementability. The goal of this article is to provide a broad overview of research on sustainable consumption and to discuss future directions for research.