In this chapter we investigate empirical specification of smooth transition error correction models (STECMs). These models can be used to describe linear long-run relationships between nonstationary variables where adjustment towards equilibrium is nonlinear and can depend on exogenous variables. The various steps involved in specifying an appropriate model are discussed for a monthly bivariate interest rate series for The Netherlands. Using simulations we first establish that standard (linearity-based) cointegration tests can be used to examine joint long-run properties. Second, we apply various tests for nonlinearity to decide on an appropriate function for the adjustment of disequilibrium errors. When we estimate an STECM, we find indications that nonlinearity is due to only two observations. We investigate the relevance of these data points by applying robust test for linearity and by considering less aggregated, i.e. weekly, data. We conclude with some suggestions for practitioners.
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Paper provided by Erasmus University of Rotterdam - Econometric Institute in its series Papers with number
9704/a.
Find related papers by JEL classification: C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: General - - - Hypothesis Testing C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions
References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Balke, Nathan S & Fomby, Thomas B, 1997.
"Threshold Cointegration,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 38(3), pages 627-45, August.
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