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(Research Paper) Quantitative Analysis of the Impact of Floods on Firms’ Financial Conditions

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July 20, 2021 Hiroki Yamamoto*1 Tomomi Naka*2 Full Text [PDF 1,509KB] Abstract This paper quantitatively analyzes the impact of floods on firms' financial conditions from the perspective of contributing to the accumulation of basic research on climate-related financial risks, while taking into account the risk characteristics of Japan, where floods are one of the most common natural disasters. Since the damage from most floods tends to concentrate in a confined geographical area, a precise evaluation of their financial impact requires an assessment of sufficiently granular data, which is a challenge for the existing studies. In order to address that challenge, this paper combines Flood Statistics, which records almost all flood damage that has

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July 20, 2021

Hiroki Yamamoto*1 Tomomi Naka*2 Full Text [PDF 1,509KB]

Abstract

This paper quantitatively analyzes the impact of floods on firms' financial conditions from the perspective of contributing to the accumulation of basic research on climate-related financial risks, while taking into account the risk characteristics of Japan, where floods are one of the most common natural disasters. Since the damage from most floods tends to concentrate in a confined geographical area, a precise evaluation of their financial impact requires an assessment of sufficiently granular data, which is a challenge for the existing studies. In order to address that challenge, this paper combines Flood Statistics, which records almost all flood damage that has occurred in Japan at the municipality level, with firm-level financial data, and this makes it possible for us to analyze the impact of floods on firms' financial conditions with greater accuracy and granularity in comparison with previous studies.

The three main conclusions of this paper are as follows. First, flood damage has a negative impact on the ratio of profit to sales, especially in the manufacturing industry. Second, the impact of floods on this ratio lessens in the short term. And third, the negative impact tends to be greater for firms located in municipalities that experienced floods with less frequency. Financial institutions need to pay close attention to the possibility that floods may cause more deterioration in firms' financial conditions than ever before as a consequence of climate change, and thus endeavor to enhance their risk management framework, bearing in mind that risk characteristics may vary depending on lenders' characteristics.

JEL classification C21, D22, Q54, R10.

Keywords Climate change, Natural disaster, Corporate finance, Physical risk, Financial stability.

The authors acknowledge the River Planning Division, the Water and Disaster Management Bureau, the Ministry of Land, Infrastructure, Transport and Tourism for providing Flood Statistics. The authors would like to thank K. Hiraki, N. Kato, S. Kobayashi, H. Mio, D. Miyakawa, J. Nakajima, K. Nakayama, N. Sudo, K. Suzuki, T. Takeuchi, Y. Tamanyu and the participants of the Study Group on Corporate Finance and Firm Dynamics at the Research Institute of Economy, Trade and Industry (RIETI) and the staff of the Bank of Japan for their valuable comments. The view expressed in this paper are those of the authors and do not necessarily reflect the official views of the Bank of Japan or the Financial System and Bank Examination Department.

*1Financial System and Bank Examination Department, Bank of Japan E-mail : [email protected] *2Financial System and Bank Examination Department, Bank of Japan E-mail : [email protected]

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