Hiroyasu Inoue, Yasuyuki Todo, 10 September 2019

Natural disasters can have enormous economic consequences that affect firms both directly and indirectly. Using the example of the Great East Japan Earthquake, this column investigates how the propagation of shocks varies with the characteristics of supply chains. It finds that the indirect effects are far larger than the direct effects. Shocks propagate more widely and are more persistent if supply networks have complex cycles and low input substitutability.

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