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The effects of structural breaks and long memory on currency hedging


  • Donald Lien
  • Li Yang


Empirical evidence suggests that unconditional variance of exchange rate return series is subject to occasional structural breaks that may induce spurious phenomenon of high persistence and long memory of volatility processes. In this study, we investigate the effects of such breaks on estimated risk‐minimizing hedge strategies (ratios) and their performance in currency markets. Using bivariate GARCH (BGARCH) and fractionally integrated GARCH models, we estimate the hedge ratios for six foreign currencies in the full sample with and without controlling for breaks and each subsample of different unconditional variance regimes identified by a modified version of the Inclan C, and Tiao GC (1994) algorithm. Our findings suggest that daily currency risk can be better hedged with currency futures when controlling for unconditional variance breaks in the BGARCH model. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:607–632, 2010

Suggested Citation

  • Donald Lien & Li Yang, 2010. "The effects of structural breaks and long memory on currency hedging," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 30(7), pages 607-632, July.
  • Handle: RePEc:wly:jfutmk:v:30:y:2010:i:7:p:607-632

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    Cited by:

    1. Lien, Donald & Yang, Li & Zhou, Chunyang & Lee, Geul, 2014. "Co-movement between RMB and New Taiwan Dollars: Evidences from NDF markets," The North American Journal of Economics and Finance, Elsevier, vol. 28(C), pages 265-272.
    2. Wang, Yudong & Wu, Chongfeng, 2012. "Long memory in energy futures markets: Further evidence," Resources Policy, Elsevier, vol. 37(3), pages 261-272.
    3. Caporin, Massimiliano & Malik, Farooq, 2020. "Do structural breaks in volatility cause spurious volatility transmission?," Journal of Empirical Finance, Elsevier, vol. 55(C), pages 60-82.
    4. Farooq Malik, 2022. "Volatility spillover among sector equity returns under structural breaks," Review of Quantitative Finance and Accounting, Springer, vol. 58(3), pages 1063-1080, April.
    5. Chi Keung Marco Lau & Mehmet Huseyin Bilgin, 2013. "Hedging with Chinese Aluminum Futures: International Evidence with Return and Volatility Spillover Indices Under Structural Breaks," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 49(S1), pages 37-48, January.
    6. Chang, Kuang-Liang, 2012. "Volatility regimes, asymmetric basis effects and forecasting performance: An empirical investigation of the WTI crude oil futures market," Energy Economics, Elsevier, vol. 34(1), pages 294-306.
    7. Kotkatvuori-Örnberg, Juha, 2016. "Dynamic conditional copula correlation and optimal hedge ratios with currency futures," International Review of Financial Analysis, Elsevier, vol. 47(C), pages 60-69.

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