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On The Impact Of The Boundary On Dynamics: Anti-Persistence In The Case Of The Hkd Exchange Rate Corridor

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  • HONG BEN YEE

    (Department of Mathematics & Statistics, Curtin University, GPO Box U1987, Perth, 6845 Western Australia, Australia)

Abstract

This paper studies the features of the USD/HKD exchange rate process by assessing the conformity of its dynamics to that of a random walk. This is not a trivial task since we consider the period within which the rate is confined to a specified corridor. This is achieved via analysis of its fractal dimension by means of the Hurst exponent as estimated using the rescaled range method. The conformity can be quantified by the difference between the estimated Hurst exponent and the random walk Hurst exponent of ½. At least two distinct Hurst exponents are identified, one corresponding to a random walk while the other, to an anti-persistent process. Partitioning the rate in state space associates the anti-persistence with proximity to the lower boundary of the corridor so the rate can be modeled using a random walk when sufficiently distant from the boundary.

Suggested Citation

  • Hong Ben Yee, 2015. "On The Impact Of The Boundary On Dynamics: Anti-Persistence In The Case Of The Hkd Exchange Rate Corridor," Annals of Financial Economics (AFE), World Scientific Publishing Co. Pte. Ltd., vol. 10(01), pages 1-25.
    • Handle: RePEc:wsi:afexxx:v:10:y:2015:i:01:n:s2010495215500062
    DOI: 10.1142/S2010495215500062
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    More about this item

    Keywords

    Anti-persistent; Hurst exponent; HKD exchange rate; boundary; bounded; currency corridor; soft peg; C13; C52; C58; F31;
    All these keywords.

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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