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Exchange Rate – Relative Price Relationship: Nonlinear Evidence from Malaysia

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  • Venus Khim-Sen Liew

    (Universiti Putra Malaysia)

  • Kian-Ping Lim

    (Universiti Sabah Malaysia)

  • Evan Lau

    (Universiti Putra Malaysia)

  • Chee-Keong Choong

    (Universiti Tunku Abdul Rahman 3)

Abstract

Using nonlinear unit root tests developed by Kapetanios et al. (2003), we find strong evidence that the Consumer Price Index (CPI) and Wholesale Price Index (WPI) based Malaysian Ringgit – U.S. Dollar (MYR/USD) real exchange rates are nonlinear stationary, implying that MYR/USD nominal exchange rate and relative price are cointegrated regardless of price indices. The results in this study are supportive of Purchasing Power Parity (PPP) and are more robust than previous study, which did not take the nonlinear exchange rate adjustment behavior into consideration. Few principle implications may be drawn from this study. First, nonlinear PPP equilibrium may be regarded as reference point in judging the short run misalignment of the Ringgit currency and thereby deducing effective policy actions. Second, the effort of Bank Negara Malaysia (BNM) in managing the Ringgit in certain fluctuation bands has successfully maintained Malaysian’s macroeconomics equilibrium in the sample period of study. Third, economists who wish to extend the simple PPP exchange rate model into the more complicated monetary exchange models may do so comfortably, at least in the text of Malaysia. Nonetheless, such attempt should be tailored in a nonlinear way to suit the nonlinear characteristic of exchange rate behaviour.

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Bibliographic Info

Paper provided by EconWPA in its series International Finance with number 0312001.

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Date of creation: 02 Dec 2003
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Handle: RePEc:wpa:wuwpif:0312001

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Keywords: Exchange rate; Nonlinearity; stationarity; Purchasing Power Parity; Exponential Smooth Transition Autoregressive (ESTAR); Malaysia.;

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