The individual and integrated impact of Blockchain and IoT on sustainable supply chains:a systematic review

Industry 4.0 technologies are transforming the conventional supply chain (SC) functioning and positively impacting sustainability. Blockchain and the Internet of Things (IoT) are two dimensions of industry 4.0 that play a crucial role in sustainable supply chain management (SSCM) and reverse logistics. This review paper focuses on investigating the impact of these technologies on SSCM separately and with their combination on forward and reverse SCs. A total of 197 papers were extracted from the Scopus database till 2020 and finally, 174 articles relevant to our paper were shortlisted and analysed after an in-depth review. The effects of these technologies on sustainability are studied separately by different researchers earlier, but their integration can lead to various insights and disclose several opportunities. The paper portrays insights on the development of Blockchain and IoT to know the current trends, industry-wide applications, challenges, and future research opportunities on SC sustainability.