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Causes of Nonlinearities in low order models of the real exchange rate

Yamin Ahmad, Ming Lo () and Olena Mykhaylova ()
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Ming Lo: Department of Economics, St Cloud State University
Olena Mykhaylova: Department of Economics, University of Richmond

Authors registered in the RePEc Author Service: Olena Staveley-O'Carroll ()

Working Papers from UW-Whitewater, Department of Economics

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 solution to the DSGE model is approximated to the first order, 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.

Keywords: Real Exchange Rate Dynamics; Nonlinear Dynamics; DSGE Modeling; Smooth Transition Estimation; Simulations (search for similar items in EconPapers)
JEL-codes: F41 (search for similar items in EconPapers)
Pages: 56 pages
Date: 2012-07, Revised 2013-03
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Citations: View citations in EconPapers (5) Track citations by RSS feed

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Journal Article: Causes of nonlinearities in low-order models of the real exchange rate (2013) Downloads
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