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Causes of nonlinearities in low-order models of the real exchange rate

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  • Ahmad, Yamin
  • Lo, Ming Chien
  • Mykhaylova, Olena

Abstract

This paper investigates the extent to which modern DSGE models, which feature local currency pricing, home bias, nontraded goods, and incomplete markets, can generate nonlinear real exchange rate dynamics that are consistent with those found in the time series literature using data from the current floating period. Our key findings are as follows. First, if the true model can be appropriately characterized as a set of linear equations, then linearity tests that utilize univariate autoregressions of the real exchange rate suffer from an omitted variables problem, which leads them to overestimate the true incidence of nonlinearity. Consequently, studies that fail to control for this problem may spuriously find evidence of nonlinearities in the data, despite the fact that the data generating process may be linear. Second, we propose a strategy that can largely eliminate this distortion. Finally, we find that DSGE models solved using higher order approximations are capable of generating true structural nonlinearities in real exchange rates both asymptotically and in short samples.

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  • Ahmad, Yamin & Lo, Ming Chien & Mykhaylova, Olena, 2013. "Causes of nonlinearities in low-order models of the real exchange rate," Journal of International Economics, Elsevier, vol. 91(1), pages 128-141.
  • Handle: RePEc:eee:inecon:v:91:y:2013:i:1:p:128-141
    DOI: 10.1016/j.jinteco.2013.04.008
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    Cited by:

    1. repec:eee:ecolet:v:161:y:2017:i:c:p:66-70 is not listed on IDEAS
    2. Ahmad Yamin & Donayre Luiggi, 2016. "Outliers and persistence in threshold autoregressive processes," Studies in Nonlinear Dynamics & Econometrics, De Gruyter, vol. 20(1), pages 37-56, February.
    3. Yamin Ahmad & Olena Mykhaylova, 2015. "Exploring International Differences in Inflation Dynamics," Working Papers 15-01, UW-Whitewater, Department of Economics, revised Mar 2017.
    4. Ahmad, Yamin S. & Staveley-O’Carroll, Olena M., 2017. "Exploring international differences in inflation dynamics," Journal of International Money and Finance, Elsevier, vol. 79(C), pages 115-135.

    More about this item

    Keywords

    Simulation; Real exchange rate dynamics; Nonlinear dynamics; Smooth transition estimation; DSGE modeling;

    JEL classification:

    • C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
    • C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes; State Space Models
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • F47 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Forecasting and Simulation: Models and Applications

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