Abstract

This study investigates the aftermath of Tohoku earthquake to the structure of Asia-Pacific currencies. The M statistic and Minimum Spanning Tree (MST) are employed to study the stability of the covariance currencies structure and its causes, respectively. To filter the information from MST, we use a degree centrality measure. The results showed that the Tohoku earthquake that struck Japan on March 2011 had increased the volatility of currencies exchange and made currencies unstable. From the control chart, it shows that the currencies are not stable from Jan 2010 until Dec 2011. Based on sample data of Nov 2011, we can conclude that LKR and HKD are the unstable currencies among the others.

Keywords:

Box, earthquake Tohoku, Japanese yen, network analysis,

References

1. Abbasi, A. and J. Altmann, 2011. On the correlation between research performance and social network analysis measures applied to research collaboration networks. Proceeding of the 44th Hawaii International Conference on System Sciences (HICSS), pp: 1-10.?
   CrossRef    
2. Batagelj, V. and A. Mrvar, 2011. PAJEK: Program for Analysis and Visualization of Large Networks. Version 2.02. Retrieved form: http://pajek.imfm.si/doku.php?id=download. (Accessed on: Jan. 6th, 2011).
   Direct Link
3. Borgatti, S.P., 1995. Centrality and AIDS. Connections, 18(1): 112-114.?
   
4. Botman, D., I.E. de Carvalho Filho and R.W. Lam, 2013. The Curious Case of the Yen as a Safe Haven Currency: A Forensic Analysis. IMF Working Paper No. 13/228, International Monetary Fund.?Washington, DC.
   
5. Box, G.E.P., 1949. A general distribution theory for a class of likelihood criteria. Biometrika, 36(3/4): 317-346.?
   CrossRef    PMid:15402070    
6. Eric Fox, 2011. Why the Yen is so Strong? Retrieved from: http://www.investopedia.com/financial-edge/0411/why-the-yen-is-so-strong.aspx.
   Direct Link
7. Hallegatte, S. and P. Dumas, 2009. Can natural disasters have positive consequences? Investigating the role of embodied technical change. Ecol. Econ., 68(3): 777-786.?
   CrossRef    
8. Hood, M., A. Kamesaka, J. Nofsinger and T. Tamura, 2013. Investor response to a natural disaster: Evidence from Japan's 2011 earthquake. Pacific-Basin Financ. J., 25: 240-252.?
   
9. Imamura, F. and S. Anawat, 2011. Damage due to the 2011 Tohoku earthquake tsunami and its lessons for future mitigation. Proceeding of the International Symposium on Engineering Lessons Learned from the 2011Great Japan Earthquake, March 1-4, 2012, Tokyo, Japan.
   
10. Jang, W., J. Lee and W. Chang, 2011. Currency crises and the evolution of foreign exchange market: Evidence from minimum spanning tree. Physica A, 390(4): 707-718.?
    CrossRef    
11. Karolyi, G.A., 2002. Did the Asian financial crisis scare foreign investors out of Japan? Pacific-Basin Financ. J., 10(4): 411-442.?
    
12. Kruskal, J.B., 1956. On the shortest spanning subtree of a graph and the traveling salesman problem. P. Am. Math. Soc., 7(1): 48-50.
    CrossRef    
13. Mantegna, R.N., 1999. Information and hierarchical structure in financial markets. Comput. Phys. Communi., 121: 153-156.?
    CrossRef    
14. Mantegna, R.N. and H.E. Stanley, 2000. An Introduction to Econophysics: Correlations and Complexity in Finance. Cambridge University Press,? Cambridge, Vol. 9.
    
15. Mizuno, T., H. Takayasu and M. Takayasu, 2006. Correlation networks among currencies. Physica A, 364: 336-342.?
    CrossRef    
16. Moldovan, I., 2011. Stock markets correlation: Before and during the crisis analysis. Theor. Appl. Econ., 8(8): 111.?
    
17. Mori, N., T. Takahashi, T. Yasuda and H. Yanagisawa, 2011. Survey of 2011 Tohoku earthquake tsunami inundation and run-up. Geophys. Res. Lett., 38(7).
    CrossRef    
18. Satake, K., 2013. Tohoku, Japan (2011 earthquake and Tsunami). Proceeding of Encyclopedia of Natural Hazards. Springer, Netherlands, pp: 1015-1018.?
    CrossRef    
19. Sauder School of Business, 2011. Pacific Exchange Rate Service. Retrieved from: http://fx.sauder.ubc.ca.
    Direct Link
20. Serrat, O., 2009. Social Network Analysis.? In: Knowledge Solutions. Asian Development Bank, Mandaluyong.
    PMCid:PMC2692772    
21. Sharif, S., N.S. Yusoff and M.A. Djauhari, 2012. Network topology of foreign exchange rate. Modern Appl. Sci., 6(11): 35.?
    CrossRef    
22. Worthington, A.C., 2008. The impact of natural events and disasters on the Australian stock market: A GARCH-M analysis of storms, floods, cyclones, earthquakes and bushfires. Global Bus. Econ. Rev., 10(1): 1-10.?
    CrossRef    
23. Yamori, N. and T. Kobayashi, 2002. Do Japanese insurers benefit from a catastrophic event? Market reactions to the 1995 Hanshin-Awaji earthquake. J. Japanese Int. Econ., 16(1): 92-108.?
    CrossRef    
24. Yusoff, N.S. and M.A. Djauhari, 2013. A statistical test for the stability of covariance structure. J. Teknologi, 63(2).
    CrossRef    

Competing interests

The authors have no competing interests.

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