Gluschenko, Konstantin (2004): Nonlinearly testing for a unit root in the presence of a break in the mean.
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This paper deals with testing a time series with a structural break in its mean for a unit root when the break date is known. A nonlinear (with respect to coefficients) test equation is used, providing asymptotically efficient estimates. Finite-sample and quasi-asymptotic empirical distributions of the unit root test statistics are estimated, comparing them with those associated with the Perron-type equations. Asymptotic distributions of the nonlinear test statistics are found to be the Dickey-Fuller distributions. The nonlinear test proves to have more power than the test based on the linear model.
|Item Type:||MPRA Paper|
|Original Title:||Nonlinearly testing for a unit root in the presence of a break in the mean|
|Keywords:||structural break; nonlinear regression; nonstandard distribution|
|Subjects:||C - Mathematical and Quantitative Methods > C2 - Single Equation Models ; Single Variables > C22 - Time-Series Models ; Dynamic Quantile Regressions ; Dynamic Treatment Effect Models ; Diffusion Processes
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C - Mathematical and Quantitative Methods > C1 - Econometric and Statistical Methods and Methodology: General > C15 - Statistical Simulation Methods: General
C - Mathematical and Quantitative Methods > C1 - Econometric and Statistical Methods and Methodology: General > C12 - Hypothesis Testing: General
|Depositing User:||Konstantin Gluschenko|
|Date Deposited:||05. Nov 2006|
|Last Modified:||13. Feb 2013 16:04|
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