• ISSN: 2010-023X (Print)
    • Abbreviated Title: Int. J. Trade, Economics and Financ.
    • Frequency: Bimonthly
    • DOI: 10.18178/IJTEF
    • Editor-in-Chief: Prof.Tung-Zong (Donald) Chang
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/ Indexing:  ProQuest, Crossref, Electronic Journals Library , EBSCO, and Ulrich's Periodicals Directory
    • E-mail: ijtef@ejournal.net
IJTEF 2020 Vol.11(3): 39-44 ISSN: 2010-023X
DOI: 10.18178/ijtef.2020.11.3.663

Decline Patterns of Stock Prices by Disasters — Case Study of May 2019

Kenji Yamaguchi and Yukari Shirota
Abstract—We shall measure the US-China trade friction impact in May 2019 on Japanese and US companies’ stock prices. When the President’ remark issued, the stock prices decreased. The decline patterns are in general dependent on the industry fields. We shall find a difference of decline patterns of the stock price movement. The data used are one of Japanese companies that have a lot of transactions with Chinese companies. They are machinery manufacturing companies (B2B transaction ones) and necessities selling companies (B2C ones) such as baby items, cosmetics, and clothing. We traced the time series data changes visually by our developed disaster impact graphs and finally found the pattern difference between the two fields. The machinery manufacturers’ stock prices clearly fall and keep low. The necessities makers’ pattern shows fluctuating declines.

Index Terms—Disaster impact on stock prices, Us-China trade friction, random matrix theory, singular value decomposition, disaster impact network.

K. Yamaguchi is with Science & Education Center (SEC), Ochanomizu University, Japan (e-mail: yamaguchi.kenji@ocha.ac.jp). Y. Shirota is with the Faculty of Economics, Gakushuin University, Japan (e-mail: yukari.shirota@gakushuin.ac.jp).


Cite: Kenji Yamaguchi and Yukari Shirota, "Decline Patterns of Stock Prices by Disasters — Case Study of May 2019," International Journal of Trade, Economics and Finance vol.11, no.3, pp. 39-44, 2020.

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).


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