The Effect of the Great East Japan Earthquake on the Stock Prices of Non-life Insurance Companies

Atsushi Takao, Takuya Yoshizawa (), Shuofen Hsu () and Takashi Yamasaki
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Atsushi Takao: Graduate School of Business Administration, Kobe University, 2-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan. E-mails: takao@kobe-u.ac.jp; yamasaki@kobe-u.ac.jp
Takuya Yoshizawa: H.S. Insurance Co. Ltd., 3-12, Yotsuya, Shinjuku-ku, Tokyo 160-0004, Japan.
Shuofen Hsu: Department of Risk Management and Insurance, National Kaohsiung First University of Science and Technology, No. 2, Juoyue Rd., Nantz District, Kaohsiung 811, Taiwan.
Takashi Yamasaki: Graduate School of Business Administration, Kobe University, 2-1 Rokkodai-cho, Nada-ku, Kobe, Hyogo 657-8501, Japan. E-mails: takao@kobe-u.ac.jp; yamasaki@kobe-u.ac.jp

The Geneva Papers on Risk and Insurance - Issues and Practice, 2013, vol. 38, issue 3, 449-468

Abstract: The Great East Japan Earthquake of 11 March 2011 incurred huge damages for Japan. This paper investigates how this earthquake influenced the value of Japanese insurance companies, especially non-life insurance companies. Our findings are as follows. (1) The stock prices of insurance companies decreased right after the earthquake. The spread of this decrease was less for the stock prices of non-life insurance companies than for those of life insurance companies. (2) The more capital buffer a non-life insurance company had, the higher the stock return. (3) The Earthquake Insurance System on Dwelling Risks in Japan not only indemnifies seismic losses but also functions as a Japanese stock market stabiliser.

Date: 2013
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