Purpose: This paper aims to identify and systematically analyze the causal-effect relationships among barriers to circular food supply chains in China.Design/methodology/approach: Grounded in multiple organizational theories, this paper develops a theoretical framework for identifying relevant barriers to integrating circular economy philosophy in food supply chain management. The study uses 105 responses from Chinese food supply chain stakeholders including food processors, sales and distribution channels, consumers and government officials. It applies a fuzzy decision-making trial and evaluation laboratory (DEMATEL) method to examine the causal-effect relationships among the identified barriers.Findings: Overall, the results suggest two key cause barriers: first, weak environmental regulations and enforcement, and second, lack of market preference/pressure. Meanwhile, lack of collaboration/support from supply chain actors is the most prominent barrier. The key cause and prominent barriers are also identified for each of the supply chain stakeholder involved.Research implications: The study offers practical insights for overcoming barriers to integrating circular economy philosophy in the management of supply chains in the Chinese food sector, as well as in other contexts where similar challenges are faced. It also sheds light on which organizational theories are most suitable for guiding similar studies.Originality/value: To the best of the authors’ knowledge, this is the first barrier study on circular food supply chains. The use of multiple organizational theories for the development of the theoretical framework is unique in barrier studies. The study offers insights from multiple stakeholders in the Chinese food supply chains.

Alongside the development of the circular economy and sustainable food supply chains (FSCs), research on food loss and waste (FLW) reduction and prevention has drawn much attention from academia, practitioners, and governments. The significance of FLW has been highlighted in the literature due to its impact on society, economy, and the environment. We propose a conceptual framework to systematically examine FLW issues within FSCs in the field of operations management (OM). We discuss various types and distribution modes of FSCs where FLW occurs, definitions of FLW, the impacts of FLW, and measures to reduce FLW in the OM field. We further introduce the methodologies that have been applied in existing FLW studies. The contribution of this paper is threefold. First, it proposes a conceptual framework to identify FLW problems within FSCs. Second, it helps to comprehensively understand FLW occurrence and thus stimulate research focusing on FLW from different perspectives. Third, it motivates researchers to discuss FLW issues by applying different methodologies.

Purpose: Food waste (FW) reduction, of which household wastage comprises a large fraction, has an important role in promoting the circular economy (CE). This study investigates how certain consumer traits impact household FW, particularly in the face of external shocks.Design/methodology/approach: The authors conducted a qualitative and longitudinal study, spanning three periods in New Zealand. A preliminary model is constructed from the outcomes of a survey with 178 participants. Then, the authors carried out 29 semi-structured interviews to refine the preliminary model and adapt it to the analysis of household waste behavior.Findings: Different segments of consumers have distinct response patterns in successive lockdowns, and these patterns impact household FW reduction and food supply chain (FSC) management. The key findings include (1) for government, quick responses to quash unhelpful rumors help to reduce public concerns around FSC interruption; (2) for retailers, the pandemic has hastened the growth of online shopping; being able to expand the distribution channel in a short time is a critical issue; and (3) for consumers, the experience of lockdown has different impacts on different groups of consumers. This variation of experience may either enhance or exacerbate FW in households.Originality/value: This paper complements the existing literature on the FSC and contributes to household FW and CE literature by providing a framework that integrates external impacts, consumer segmentation to reflect on waste management, and the possible applications of the proposed framework.