Among the numerous SCM articles that appeared in 2020, one was particularly popular: Global Supply-Chain Effects of COVID-19 Control Measures by Guan et al. (2020). The authors “analyse the supply-chain effects of a set of idealized lockdown scenarios, using the latest global trade modelling framework”. This model is an extension of the so-called ARIO model, which is often used in the literature to simulate how negative shocks propagate throughout the economy. The findings can be summarized as follows: “Short, sharp shock: stricter COVID-19 lockdowns imposed earlier have a smaller economic impact than moderate lockdowns that last longer, according to an analysis of global supply chains. The researchers suggest a cautious approach to easing restrictions could also prevent subsequent lockdowns.” The article is part of the 2020 Altmetric Top 100, which lists the most discussed articles across 20 disciplines. It was published in the journal Nature Human Behavior.
Guan, D., Wang, D., Hallegatte, S. et al. (2020). Global Supply-Chain Effects of COVID-19 Control Measures. Nature Human Behavior, 4, 577–587. https://doi.org/10.1038/s41562-020-0896-8