PurposeThis research seeks to identify the motivations, means and outcomes of supply chain integration (SCI) among firms in the middle market (i.e. those with annual revenues between US$10m and US$1bn). These firms often interface with larger, more powerful firms in the supply chain – both suppliers and customers. Understanding how these firms are challenged and benefit from integrative mechanisms in supply chain relations can lead to better outcomes more often.Design/methodology/approachThe research utilizes an online focus group methodology featuring 39 participants. The participants were able to interact in written form with a professional moderator, as well as each other, over the course of three days.FindingsThe research presents evidence that firms in the middle market adopt SCI as a response to pressure from customers and suppliers. These firms also view technology as a primary means of achieving integration. Despite their disadvantageous size position relative to larger customers and suppliers, firms in the middle market achieved positive outcomes from integration.Research limitations/implicationsBecause of the specific context of middle-market firms, this research may lack generalizability. However, providing contextualization regarding firm size contributes specificity to the large number of studies detailing the challenges and benefits of SCI.Practical implicationsManagers of firms in the middle market should find value in this study as it explicates the possible benefits their firms may realize through integration with customers and suppliers. Moreover, this research outlines several of the possible means through which integration can be achieved. Further, managers in smaller and larger firms can better understand the motives and needs of middle-market companies with which they interact.Originality/valueDespite voluminous literature on SCI, this paper provides context-specific findings by isolating the implications of SCI to firms in the middle market.

Purpose This study aims to focus on building a conceptual closed-loop vaccine supply chain (CLVSC) to decrease vaccine wastage and counterfeit/fake vaccines. Design/methodology/approach Through a focused literature review, the framework for the CLVSC is described, and the system dynamics (SD) research methodology is used to build a causal loop diagram (CLD) of the proposed model. Findings In the battle against COVID-19, waste management systems have become overwhelmed, which has created negative environmental and extremely hazardous societal impacts. A key contributing factor is unused vaccine doses, shown as a source for counterfeit/fake vaccines. The findings identify a CLVSC design and transshipment operations to decrease vaccine wastage and the potential for vaccine theft. Research limitations/implications This study contributes to establishing a pandemic-specific VSC structure. The proposed model informs the current COVID-19 pandemic as well as potential future pandemics. Social implications A large part of the negative impact of counterfeit/fake vaccines is on human well-being, and this can be avoided with proper CLVSC. Originality/value This study develops a novel overarching SD CLD by integrating the epidemic model of disease transmission, VSC and closed-loop structure. This study enhances the policymakers’ understanding of the importance of vaccine waste collection, proper handling and threats to the public, which are born through illicit activities that rely on stolen vaccine doses.

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