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Central bank intervention, threshold effects and asymmetric volatility: Evidence from the Japanese yen-US dollar foreign exchange market

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  • Suardi, Sandy

Abstract

Recent empirical evidence of nonlinearities in the time series behaviour of exchange rates suggests that a linear model of the exchange rate may yield invalid inference when used to assess the effectiveness of central bank intervention. Using a double threshold GARCH model of the Japanese yen-US dollar exchange rates, we find that interventions by the Bank of Japan and the Federal Reserve are more effective in changing the direction of the exchange rate movements and reducing its volatility level in a regime when the exchange rates are severely misaligned. There is also evidence in such a regime for a negative return innovation to elicit higher levels of volatility than a positive innovation of equal magnitude. The presence of asymmetric volatility in exchange rate returns may be a result of active central bank intervention.

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  • Suardi, Sandy, 2008. "Central bank intervention, threshold effects and asymmetric volatility: Evidence from the Japanese yen-US dollar foreign exchange market," Economic Modelling, Elsevier, vol. 25(4), pages 628-642, July.
  • Handle: RePEc:eee:ecmode:v:25:y:2008:i:4:p:628-642
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    Cited by:

    1. Xie, Taojun & Liu, Jingting & Alba, Joseph D. & Chia, Wai-Mun, 2017. "Does wage-inflation targeting complement foreign exchange intervention? An evaluation of a multi-target, two-instrument monetary policy framework," Economic Modelling, Elsevier, vol. 62(C), pages 68-81.
    2. Beg, A.B.M. Rabiul Alam & Anwar, Sajid, 2012. "Sources of volatility persistence: A case study of the U.K. pound/U.S. dollar exchange rate returns," The North American Journal of Economics and Finance, Elsevier, vol. 23(2), pages 165-184.
    3. Cavusoglu Nevin, 2011. "Exchange Rates and the Effectiveness of Actual and Oral Official Interventions: A Survey on Findings, Issues and Policy Implications," Global Economy Journal, De Gruyter, vol. 10(4), pages 1-42, January.
    4. Bahram Adrangi & Mary Allender & Kambiz Raffiee, 2011. "An Ex-Post Empirical Investigation of the Efficacy of Central Bank Interventions in Currency Markets: Bilateral Exchange Rate of the Dollar," Review of Economics & Finance, Better Advances Press, Canada, vol. 1, pages 19-34, August.
    5. repec:bla:worlde:v:40:y:2017:i:9:p:1836-1865 is not listed on IDEAS
    6. Katusiime, Lorna & Shamsuddin, Abul & Agbola, Frank W., 2015. "Macroeconomic and market microstructure modelling of Ugandan exchange rate," Economic Modelling, Elsevier, vol. 45(C), pages 175-186.

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