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Half-Life Deviations From Purchasing Power Parity: Evidence From Pacific Rim Countries

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  • MING-JEN CHANG

    (Department of Economics, National Dong Hwa University, Hualien 97401, Taiwan)

Abstract

The study examines the half-life deviations from purchasing power parity (PPP) using both linear and nonlinear models for the sector specific real exchange rates of the Pacific Rim countries. By using a linear benchmark model, the estimated half-life deviations from PPP of about/or less than 3 years seemingly solve the PPP puzzle. After re-examining them using nonlinear forms, the PPP puzzle for most sectoral real exchange rates in the study still remains. More specifically, we find that deviations from PPP by TAR are persistent and take much more time for mean reversions especially for non-tradable sectors using logistic STAR / exponential STAR (LSTAR/ESTAR). The major reasons might be that conventional studies have failed to control the possible nonlinearity of real exchange rates, and have disregarded the possible bias of any single numèraire country. Finally, we also show the speed of mean reversion for real exchange rates by sectoral prices (tradable and non-tradable).

Suggested Citation

  • Ming-Jen Chang, 2016. "Half-Life Deviations From Purchasing Power Parity: Evidence From Pacific Rim Countries," The Singapore Economic Review (SER), World Scientific Publishing Co. Pte. Ltd., vol. 61(04), pages 1-20, September.
    • Handle: RePEc:wsi:serxxx:v:61:y:2016:i:04:n:s021759081650003x
    DOI: 10.1142/S021759081650003X
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    1. Niri Martha Choji* & Siok Kun Sek, 2018. "Investigating the PPP Theory and Long-run Estimates for Five Asian Countries," The Journal of Social Sciences Research, Academic Research Publishing Group, pages 237-242:2.

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