論文

査読有り 本文へのリンクあり
2020年6月

Supply Constraint from Earthquakes in Japan in Input-Output Analysis

RISK ANALYSIS
  • Michiyuki Yagi
  • ,
  • Shigemi Kagawa
  • ,
  • Shunsuke Managi
  • ,
  • Hidemichi Fujii
  • ,
  • Dabo Guan

記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1111/risa.13525
出版者・発行元
WILEY

Disasters often cause exogenous flow damage (i.e., the [hypothetical] difference in economic scale with and without a disaster in a certain period) to production ("supply constraint"). However, input-output (IO) analysis (IOA) cannot usually consider it, because the Leontief quantity model (LQM) assumes that production is endogenous; the Ghosh quantity model (GQM) is considered implausible; and the Leontief price model (LPM) and the Ghosh price model (GPM) assume that quantity is fixed. This study proposes to consider a supply constraint in the LPM, introducing the price elasticity of demand. This study uses the loss of social surplus (SS) as a damage estimation because production (sales) is less informative as a damage index than profit (margin); that is, production can be any amount if without considering profit, and it does not tell exactly how much profit is lost for each supplier (upstream sector) and buyer (downstream sector). As a model application, this study examines Japan's largest five earthquakes from 1995 to 2017 and the Great East Japan Earthquake (GEJE) in March 2011. The worst earthquake at the peak tends to increase price by 10-20% and decrease SS by 20-30%, when compared with the initial month's prices/production. The worst damage tends to last eight months at most, accumulating 0.5-month-production damage (i.e., the sum of [hypothetical] differences in SS with and without an earthquake [for eight months] is 50% of the initial month production). Meanwhile, the GEJE in the five prefectures had cumulatively, a 25-month-production damage until the temporal recovery at the 37th month.

Web of Science ® 被引用回数 : 3

リンク情報
DOI
https://doi.org/10.1111/risa.13525
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000538305700001&DestApp=WOS_CPL
ID情報
  • DOI : 10.1111/risa.13525
  • ISSN : 0272-4332
  • eISSN : 1539-6924
  • Web of Science ID : WOS:000538305700001

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