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Intensive competition among supply chains often forces trading partners to collaborate despite their conflict of interests. Supply chain contracts and collaboration theory is well established in the academic literature to align the interests but much less conveyed to students and industry professionals for a practical impact. Although the Beer Game captures the bullwhip effect and the value of information sharing, it ignores the conflict of interests, that is, price and quantity bargaining, among the trading partners. We describe a new online teaching game, the FloraPark simulation (“the flower game” at https://flower.gamespots.net/ ), based on real-life events in the international fresh-cut flower supply chains, for students to learn supply chain collaboration via contracts in a setting of multiple supply chains competing in the same market. Students play trading partners in the flower supply chains and experiment with the push, pull, and advanced purchasing discount contracts by negotiating wholesale prices and quantities to achieve the conflicting objectives of (1) collaboration to beat other supply chains, and (2) bargaining to protect their own interests from their trading partners. Supplemental Material: The e-companion is available at https://doi.org/10.1287/ited.2022.0035 .

Improving supply chain sustainability is an essential part of achieving the UN’s sustainable goals. Digitalization, such as blockchain technology, shows the potential to reshape supply chain management. Using distributed ledger technology, the blockchain platform provides a digital system and database to record the transactions along the supply chain. This decentralized database of transactions brings transparency, reliability, traceability, and efficiency to the supply chain management. This paper focuses on such novel blockchain-based supply chain management and its sustainability performances in the areas of environmental protection, social equity, and governance efficiency. Using a systematic literature review and two case studies, we evaluate whether the three sustainability indicators can be improved indirectly along supply chains based on blockchain technology. Our study shows that blockchain technology has the potential to improve supply chain sustainability performance, and we expect blockchain technology to rise in popularity in supply chain management.

Dear Sir, We thank Dr. Donmez for his comments on our publication in Neuroradiology [1], and we would like to make the following comments in reply. He noted that the normal diffusion-weighted imaging (DWI) of our cases may not be associated with a good prognosis if brain magnetic resonance imaging (MRI) with diffusion study was performed in the subacute phase of cytotoxic edema, in which restricted diffusion start to diminish and apparent diffusion coefficient (ADC) values increase. We agree with him that timing is important in brain MRI with diffusion study in patients with encephalitis, and DWI may be less sensitive when there is a time delay between the onset of the disease and imaging. In all three of our cases, the pediatric physicians decided to performDWIwithin the first 12 h and conventional brainMRI within the first 3 days immediately after meaningful neurologic symptom onset. There was no definite restriction on the diffusion study including ADC map in our cases. So we could not find the evidence of cytotoxic edema induced by encephalitis at acute phase in our cases by using diffusion study [2]. As we expected, these patients showed favorable outcome with supportive management. In a previous report, enterovirus 71-related encephalomyelitis with brainMRI and DWI study, we experienced that four of five patients did not reveal definite restriction on the diffusion study, who gradually recovered with conservative treatment without sequelae. But, one case with restricted diffusion in the lesion of the hippocampus showed the atrophic change on follow-up study [3]. Consequently, we consider that no definite restriction on the diffusion study in the early phase of the RSV-related encephalitis may provide evidence for the reversibility of the lesion, which is not progressed to cytotoxic edema and it is associated with favorable outcomes [4, 5]. As Dr. Donmez commented, DWI is superior to conventional MRI in detecting irreversible cytotoxic edema especially at acute phase of encephalitis. However, it may be less sensitive at later phase due to dynamic pathologic changes. It is needed to be considered and discussed at further study.