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A note on long horizon forecasts of nonlinear models of real exchange rates: Comments on Rapach and Wohar (2006)

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Author Info
Buncic, Daniel

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Abstract

We show that long horizon forecasts from the nonlinear models that are considered in the study by Rapach andWohar (2006) cannot generate any forecast gains over a simple AR(1) specification. This is contrary to the findings reported in Rapach and Wohar (2006). Moreover, we illustrate graphically that the nonlinearity in the forecasts from the ESTAR model is the strongest when forecasting one step-ahead and that it diminishes as the forecast horizon increases. There exists, therefore, no potential whatsoever for the considered nonlinear models to outperform linear ones when forecasting far ahead. We also illustrate graphically why one step-ahead forecasts from the nonlinear ESTAR model fail to yield superior predictions to a simple AR(1).

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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 6904.

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Date of creation: 24 Jan 2008
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Handle: RePEc:pra:mprapa:6904

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Related research
Keywords: PPP; regime modelling; nonlinear real exchange rate models; ESTAR; forecast evaluation.;

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Find related papers by JEL classification:
C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Other Model Applications
C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation and Testing
F47 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Forecasting and Simulation
C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions
F31 - International Economics - - International Finance - - - Foreign Exchange

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  2. Adrian Pagan, 2002. "Learning About Models And Their Fit To Data ," International Economic Journal, Korean International Economic Association, vol. 16(2), pages 1-18, June. [Downloadable!] (restricted)
  3. Harvey, David & Leybourne, Stephen & Newbold, Paul, 1997. "Testing the equality of prediction mean squared errors," International Journal of Forecasting, Elsevier, vol. 13(2), pages 281-291, June. [Downloadable!] (restricted)
  4. Diebold, Francis X & Mariano, Roberto S, 1995. "Comparing Predictive Accuracy," Journal of Business & Economic Statistics, American Statistical Association, vol. 13(3), pages 253-63, July.
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  5. Halbert White, 2000. "A Reality Check for Data Snooping," Econometrica, Econometric Society, vol. 68(5), pages 1097-1126, September.
  6. Maurice Obstfeld & Alan M. Taylor, 1997. "Nonlinear Aspects of Goods-Market Arbitrage and Adjustment: Heckscher's Commodity Points Revisited," NBER Working Papers 6053, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
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  7. Rapach, David E. & Wohar, Mark E., 2006. "The out-of-sample forecasting performance of nonlinear models of real exchange rate behavior," International Journal of Forecasting, Elsevier, vol. 22(2), pages 341-361. [Downloadable!] (restricted)
  8. Robert Breunig & Serinah Najarian & Adrian Pagan, 2003. "Specification Testing of Markov Switching Models," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 65(s1), pages 703-725, December. [Downloadable!] (restricted)
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