Supply Chain Disruptions: Evidence from the Great East Japan Earthquake
51 Pages Posted: 12 Dec 2016 Last revised: 24 Aug 2020
Date Written: August 23, 2020
Exploiting the exogenous and regional nature of the Great East Japan Earthquake of 2011, this paper provides a quantification of the role of input-output linkages as a mechanism for the propagation and amplification of shocks. We document that the disruption caused by the disaster propagated upstream and downstream supply chains, affecting the direct and indirect suppliers and customers of disaster-stricken firms. Using a general equilibrium model of production net- works, we then obtain an estimate for the overall macroeconomic impact of the disaster by taking these propagation effects into account. We find that the earthquake and its aftermaths resulted in a 0.47 percentage point decline in Japan’s real GDP growth in the year following the disaster.
Keywords: Input-Output Linkages, Production Networks, Aggregate Fluctuations, Natural Disasters
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