Supply-chain simulations for shaping lockdown policies

Hiroyasu Inoue, Yohsuke Murase and Yasuyuki Todo

Spatial Economic Analysis, 2023, vol. 18, issue 3, 368-386

Abstract: To prevent the spread of COVID-19, many governments have imposed lockdowns. This practice has resulted in economic stagnation across broad areas because of the shock of the lockdown propagated to other regions through supply chains. Using supply-chain data for 1.6 million firms in Japan, this study examines how the economic effects of lockdowns in multiple regions interact with each other. Our major findings are twofold. First, when multiple regions coordinate the timing of their lockdowns, their economic losses are smaller than when they do so asynchronously. Second, the benefit of synchronous lockdown in multiple regions is larger when they are connected through a larger number of supply-chain links. Our results suggest a need for policy coordination across regions and countries when lockdowns are imposed.

Date: 2023
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DOI: 10.1080/17421772.2022.2158212

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