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Co-movements of returns in the health care sectors from the US, UK, and Germany stock markets: Evidence from the continuous wavelet analyses

Mei-Ping Chen, Wen-Yi Chen and Tseng-Chan Tseng

International Review of Economics & Finance, 2017, vol. 49, issue C, 484-498

Abstract: As the health care sector is one of the largest and fastest growing industries around the world, this study utilizes the wavelet approach to investigate the co-movement of returns in this sector from the US, UK, and Germany stock markets over the period of 1992–2013. Our results suggest that the return of the health care sector in the UK (US) stock market leads those in the US and Germany (Germany) stock markets in the short run and medium run, while the returns of the health care sector in the US stock market lead those in the UK stock market in the long run. We find the least (most) structural change in the return of the health care sector for the UK (US) stock market, as both countries belong to two extreme (i.e., public and private) health care systems. There is also an overall increase of long-run interdependence between UK and US health care sectors. Both the subprime mortgage crisis and global financial crisis caused clear contagion effects between the health care sectors of DE and UK as well as those of US and DE. Finally, our results highlight the importance of taking into consideration the time and frequency-varying properties of health care sectors’ stock return co-movement in international portfolios.

Keywords: Co-movement; Continuous wavelet analysis; Health care; Partial coherency; Phase-difference; Sector returns (search for similar items in EconPapers)
JEL-codes: C40 E31 I11 (search for similar items in EconPapers)
Date: 2017
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