Nonlinear and Asymmetric Adjustment to Purchasing Power Parity in East-Asian Countries

Authors: Wen-Chi Liu

Abstract:

This study applies a simple and powerful nonlinear unit root test to test the validity of long-run purchasing power parity (PPP)  in a sample of 10 East-Asian countries (i.e., China, Hong Kong,  Indonesia, Japan, Korea, Malaysia, Philippines, Singapore, Taiwan  and Thailand) over the period of March 1985 to September 2008. The empirical results indicate that PPP holds true for half of these 10  East-Asian countries under study, and the adjustment toward PPP is found to be nonlinear and in an asymmetric way. 

 

Keywords: Purchasing Power Parity, East-Asian Countries, Nonlinear Unit Root Test, Asymmetry.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1336997

References:

[1] Taylor, M. P. and D. A. Peel (2000), "Nonlinear Adjustment, Long-Run Equilibrium and Exchange Rate Fundamentals,” Journal of International Money and Finance, 19(1), 33-53.
[2] Taylor, M. P., D. A. Peel, and L. Sarno (2001), "Nonlinear Mean-Reversion in Real Exchange Rates: Toward a Solution to the Purchasing Power Parity Puzzles,” International Economic Review, 42(4), 1015-1042.
[3] Juvenal, L. and M. P. Taylor (2008), "Threshold Adjustment of Deviations from the Law of One Price,” Studies in Nonlinear Dynamics and Econometrics, 12(3), 1-44.
[4] Lothian, J. R. and M. P. Taylor (2000), "Purchasing Power Parity Over Two Centuries: Strengthening the Case for Real Exchange Rate Stability Reply to Cuddington and Liang,” Journal of International Money and Finance, 19(5), 759-764.
[5] Taylor, M. P. (2004), "Is Official Exchange Rate Intervention Effective?” Economica, 71(281), 1-11.
[6] Menkhoff, L. and Taylor, M. P. (2007), "The obstinate passion of foreign exchange professionals: Technical analysis,” Journal of Economic Literature, 45(4), 936-972.
[7] Reitz, S. and Taylor, M. P. (2008), "The coordination channel of foreign exchange intervention: A nonlinear microstructure analysis,” European Economic Review, 52(1), 55-76.
[8] Kilian, L and M. P. Taylor (2003), "Why is it so difficult to beat the random walk forecast of exchange rates?” Journal of International Economics, 60, 85-107.
[9] Taylor, M. P. (1995), "The Economics of Exchange-Rates,” Journal of Economic Literature, 33(1), 13-47.
[10] Rogoff, K. (1996), "The Purchasing Power Parity Puzzle”, Journal of Economic Literature, 34, 647-668.
[11] MacDonald, R. and M. P. Taylor (1992), "Exchange Rate Economics: A Survey,” Staff Papers- International Monetary Fund, 39(1), 1-57.
[12] Taylor, M. P. and L. Sarno (1998), "The Behavior of Real Exchange Rates during the Post-Bretton Woods Period,” Journal of International Economics, 46(2), 281-312.
[13] Sarno, L. and M. P. Taylor (2002), "Purchasing Power Parity and the Real Exchange Rate,” IMF Staff Papers, 49, 65-105.
[14] Taylor, A. M and M. P. Taylor (2004), "The Purchasing Power Parity Debate,” Journal of Economic Perspectives, 18 (4), 135-158.
[15] Lothian, J. R. and M. P. Taylor (2008), "Real Exchange Rates over the Past Two Centuries: How Important is the Harrod-Balassa-Samuelson Effect?” Economic Journal, 118 (532), 1742-1763.
[16] Laxton, D., D. Rose and R. Tetlow (1993) "Is the Canadian Phillips Curve Non-linear?” Bank of Canada Working paper, 93-7.
[17] Koop, G. M. and S. Potter (2001) "Are apparent findings of nonlinearity due to structural instability in economic time series?” Econometrics Journal, 4 (1), 37-55.
[18] Baum, C. F., J. T. Barkoulas, and M. Caglayan (2001), "Nonlinear Adjustment to Purchasing Power Parity in the Post-Bretton Woods,” Journal of International Money and Finance, 20, 379-399.
[19] Sollis, R. (2009), "A Simple Unit Root Test Against Asymmetric STAR Nonlinearity with an Application to Real Exchange Rates in Nordic Countries,” Economic Modelling, 26, 118-125.
[20] Kapetanios, G., Y. Shin, and A. Snell (2003), "Testing for a Unit Root in the Nonlinear STAR Framework,” Journal of Econometrics, 112, 359-379.
[21] Park, J. Y. and M. Shintani (2005), "Testing for a Unit Root against Transitional Autoregressive Models,” Working Papers, Department of Economics, Vanderbilt University.
[22] Sollis, R., S. J. Leybourne, and P. Newbold (2002), "Tests for Symmetric and Asymmetric Nonlinear Mean Reversion in Real Exchange Rates,” Journal of Money, Credit, and Banking, 34(3), 686-700.
[23] Baharumshah, A. Z, C. T. Haw, and S. Fountas (2005), "A panel study on real interest rate parity in East Asian countries: pre and post-liberalization era,” Global Finance Journal, 16(1), 69-85.
[24] Phillips, P. C. B. and P. Perron (1988), "Testing for a Unit Root in Time Series Regression,” Biometrika, 75, 335-346.
[25] Kwiatkowski, D., P. Phillips, P. Schmidt, and Y. Shin (1992), "Testing the Null Hypothesis of Stationarity Against the Alternative of a Unit Root: How Sure Are We That Economic Time Series Have a Unit Root?” Journal of Econometrics, 54, 159-178.
[26] Perron, P. (1989), "The great crash, the oil price shock, and the unit root hypothesis,” Econometrica, 57, 1361-401.
[27] Newey, W. and West, K. (1994), "Automatic lag selection in covariance matrix estimation,” Review of Economic Studies, 61, 631-53.