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A Nonparametric Measure of Convergence Toward Purchasing Power Parity

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  • Mototsugu Shintani

    () (Department of Economics, Vanderbilt University)

Abstract

It has been claimed that the deviations from purchasing power parity are highly persistent and have quite long half-lives under the assumption of a linear adjustment of real exchange rates. However, inspired by trade cost models, nonlinear adjustment has been widely employed in recent empirical studies. This paper proposes a simple nonparametric procedure for evaluating the speed of adjustment in the presence of nonlinearity, using the largest Lyapunov exponent of the time series. The empirical result suggests that the speed of convergence to a long-run price level is indeed faster than what was found in previous studies with linear restrictions.

Suggested Citation

  • Mototsugu Shintani, 2002. "A Nonparametric Measure of Convergence Toward Purchasing Power Parity," Vanderbilt University Department of Economics Working Papers 0219, Vanderbilt University Department of Economics, revised Jul 2004.
  • Handle: RePEc:van:wpaper:0219
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    References listed on IDEAS

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    Cited by:

    1. Tapas MISHRA & Mamata PARHI & Claude DIEBOLT, 2014. "Evolutionary efficiency and distributive effects of inertia in cross-country life-satisfaction," Economies et Sociétés (Serie 'Histoire Economique Quantitative'), Association Française de Cliométrie (AFC), issue 49, pages 1335-1356, Août.
    2. Kim, Hyeongwoo & Ryu, Deockhyun, 2015. "A nonparametric study of real exchange rate persistence over a century," International Review of Economics & Finance, Elsevier, vol. 37(C), pages 406-418.
    3. Bask, Mikael, 2010. "Measuring potential market risk," Journal of Financial Stability, Elsevier, vol. 6(3), pages 180-186, September.
    4. Bask, Mikael & Widerberg, Anna, 2009. "Market structure and the stability and volatility of electricity prices," Energy Economics, Elsevier, vol. 31(2), pages 278-288, March.
    5. Dimitrios Malliaropulos & Ekaterini Panopoulou & Theologos Pantelidis & Nikitas Pittis, 2013. "Decomposing the persistence of real exchange rates," Empirical Economics, Springer, vol. 44(3), pages 1217-1242, June.
    6. Parhi, Mamata & Diebolt, Claude & Mishra, Tapas & Gupta, Prashant, 2013. "Convergence dynamics of output: Do stochastic shocks and social polarization matter?," Economic Modelling, Elsevier, pages 42-51.
    7. Bask, Mikael & Widerberg, Anna, 2007. "The Stability and Volatility of Electricity Prices: An Illustration of (lambda, sigma-2) Analysis," Working Papers in Economics 267, University of Gothenburg, Department of Economics.
    8. Tapas Mishra & Mamata Parhi & Raúl Fuentes, 2015. "How Interdependent are Cross-Country Happiness Dynamics?," Social Indicators Research: An International and Interdisciplinary Journal for Quality-of-Life Measurement, Springer, vol. 122(2), pages 491-518, June.

    More about this item

    Keywords

    Mean reversion; nonlinear time series; nonparametric regression; purchasing power parity puzzle; Real exchange rates;

    JEL classification:

    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • F31 - International Economics - - International Finance - - - Foreign Exchange

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