I see the point that blockchain helps make provenance tracing possible, but will need more details of how blockchain technology is leveraged here. Otherwise, I still feel stuck by questions like "Why it has to be blockchain?" and "Can't other technologies serve the same function?".

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Bonadio, B., Huo, Z., Levchenko, A. A., & Pandalai-Nayar, N. (2020). Global Supply Chains in the Pandemic (Working Paper No. 27224; Working Paper Series). National Bureau of Economic Research. https://doi.org/10.3386/w27224

Hassan, T. A., Hollander, S., van Lent, L., & Tahoun, A. (2020). Firm-level Exposure to Epidemic Diseases: Covid-19, SARS, and H1N1 (Working Paper No. 26971; Working Paper Series). National Bureau of Economic Research. https://doi.org/10.3386/w26971

Papanikolaou, D., & Schmidt, L. D. W. (2020). Working Remotely and the Supply-side Impact of Covid-19 (Working Paper No. 27330; Working Paper Series). National Bureau of Economic Research. https://doi.org/10.3386/w27330

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Zhong, S., Crang, M., & Zeng, G. (2020). Constructing freshness: The vitality of wet markets in urban China. Agriculture and Human Values, 37(1), 175–185. https://doi.org/10.1007/s10460-019-09987-2

Gruszczynski, L. (2020). The Covid-19 Pandemic and International Trade: Temporary Turbulences or Paradigm Shift? European Journal of Risk Regulation, 1-6. doi:10.1017/err.2020.29

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Supply chain is a whooooole other thing man