Unit root tests with smooth breaks: an application to the Nelson–Plosser data set

References

• Amsler , C. and Lee , J. 1995 . An LM test for a unit root in the presence of a structural change . Econometric Theory , 11 : 359 – 68 .
   Web of Science ®Google Scholar
• Becker , R. , Enders , W. and Hurn , S. 2004 . A general test for time dependence in parameters . Journal of Applied Econometrics , 19 : 899 – 906 .
   Web of Science ®Google Scholar
• Becker , R. , Enders , W. and Lee , J. 2006 . A stationarity test in the presence of an unknwon number of smooth breaks . Journal of Time Series Analysis , 27 : 381 – 409 .
   Web of Science ®Google Scholar
• Burke, S. (1994). Confirmatory data analysis: the joint application of stationarity and unit root tests, Discussion Paper 20, University of Reading
   Google Scholar
• Christiano , L. 1992 . Searching for a break in gnp . Journal of Business and Economic Statistics , 10 : 237 – 50 .
   Web of Science ®Google Scholar
• Dickey , D. and Fuller , W. 1979 . Distribution of the estimators for autoregressive time series with a unit root . Journal of the American Statistical Association , 74 : 427 – 31 .
   Web of Science ®Google Scholar
• Dickey , D. and Fuller , W. 1981 . Likelihood ratio statistics for autoregressive time series with a unit root . Econometrica , 49 : 1057 – 72 .
   Web of Science ®Google Scholar
• Enders, W. and Lee, J. (2006) Testing for a unit root with a nonlinear fourier function, mimeo, University of Alabama
   Google Scholar
• Gallant , R. 1981 . On the basis in flexible functional form and an essentially unbiased form: the flexible fourier form . Journal of Econometrics , 15 : 211 – 353 .
   Web of Science ®Google Scholar
• Maddala , G. and Kim , I.-M. 1998 . Unit Roots, Cointegration and Structural Change , Cambridge : Cambridge University Press .
   Google Scholar
• Nelson , C. and Plosser , C. 1982 . Trends and random walks in macroeconomic time series . Journal of Monetary Economics , 10 : 139 – 62 .
   Web of Science ®Google Scholar
• Perron , P. 1989 . The Great Crash, the oil price shock and the unit root hypothesis . Econometrica , 57 : 1361 – 401 .
   Web of Science ®Google Scholar
• Phillips , P. and Perron , P. 1988 . Testing for a unit root in time series regression . Biometrika , 75 : 335 – 46 .
   Web of Science ®Google Scholar
• Schmidt , P. and Phillips , P. 1992 . LM tests for a unit root in the presence of deterministic trends . Oxford Bulletin of Economics and Statistics , 54 : 257 – 87 .
   Web of Science ®Google Scholar