Testing for seasonal unit roots in heterogeneous panels using monthly data in the presence of cross sectional dependence
This paper generalises the monthly seasonal unit root tests of Franses (1991) for a heterogeneous panel following the work of Im, Pesaran, and Shin (2003), which we refer to as the F-IPS tests. The paper presents the mean and variance necessary to yield a standard normal distribution for the tests, for different number of time observations, T, and lag lengths. However, these tests are only applicable in the absence of cross-sectional dependence. Two alternative methods for modifying these F-IPS tests in the presence of cross-sectional dependency are presented : the first is the cross-sectionally augmented test,denoted CF-IPS, following Pesaran (2007), the other is a bootstap method, denoted BF-IPS. In general, the BF-IPS tests have greater power than the CF-IPS tests, although for large T and high degree of cross-sectional dependency the CF-IPS test dominates the BF-IPS test.
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| Length: | 30 pages |
| Date of creation: | 2008 |
| Handle: | RePEc:wrk:warwec:865 |
| Contact details of provider: | Postal: CV4 7AL COVENTRY Phone: +44 (0) 2476 523202 Fax: +44 (0) 2476 523032 Web page: http://www2.warwick.ac.uk/fac/soc/economics/ More information through EDIRC
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- Otero, Jesus & Smith, Jeremy & Giulietti, Monica, 2007.
"Testing for seasonal unit roots in heterogeneous panels in the presence of cross section dependence,"
Economics Letters,
Elsevier, vol. 97(2), pages 179-184, November.
- Giulietti, Monica & Otero, Jesus & Smith, Jeremy, 2007. "Testing for seasonal unit roots in heterogeneous panels in the presence of cross section dependence," The Warwick Economics Research Paper Series (TWERPS) 784, University of Warwick, Department of Economics.
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- Hylleberg, S. & Engle, R.F. & Granger, C.W.J. & Yoo, B.S., 1988. "Seasonal, Integration And Cointegration," Papers 6-88-2, Pennsylvania State - Department of Economics.
- Otero, Jesus & Smith, Jeremy & Giulietti, Monica, 2005. "Testing for seasonal unit roots in heterogeneous panels," Economics Letters, Elsevier, vol. 86(2), pages 229-235, February.
- Jesus Otero & Jeremy Smith, 2004. "Testing for seasonal unit roots in heterogeneous panels," Econometric Society 2004 Latin American Meetings 21, Econometric Society.
- Otero, Jesus & Smith, Jeremy & Giulietti, Monica, 2004. "Testing for Seasonal Unit Roots in Heterogeneous Panels," The Warwick Economics Research Paper Series (TWERPS) 695, University of Warwick, Department of Economics.
- Chang, Yoosoon, 2004. "Bootstrap unit root tests in panels with cross-sectional dependency," Journal of Econometrics, Elsevier, vol. 120(2), pages 263-293, June.
- Yoosoon Chang, 2000. "Bootstrap Unit Root Tests in Panels with Cross-Sectional Dependency," Econometric Society World Congress 2000 Contributed Papers 1585, Econometric Society.
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- Christian Dreger* & Hans-Eggert Reimers, 2005. "Panel Seasonal Unit Root Test: Further Simulation Results and An Application to Unemployment Data," AStA Advances in Statistical Analysis, Springer;German Statistical Society, vol. 89(3), pages 321-337, August.
- Ghysels,Eric & Osborn,Denise R., 2001. "The Econometric Analysis of Seasonal Time Series," Cambridge Books, Cambridge University Press, number 9780521565882, December.
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- Im, Kyung So & Pesaran, M. Hashem & Shin, Yongcheol, 2003. "Testing for unit roots in heterogeneous panels," Journal of Econometrics, Elsevier, vol. 115(1), pages 53-74, July.
- Pasaran, M.H. & Im, K.S. & Shin, Y., 1995. "Testing for Unit Roots in Heterogeneous Panels," Cambridge Working Papers in Economics 9526, Faculty of Economics, University of Cambridge.
- Tom Doan, "undated". "IPSHIN: RATS procedure to implement Im, Pesaran and Shin panel unit root test," Statistical Software Components RTS00098, Boston College Department of Economics.
- Maddala, G S & Wu, Shaowen, 1999. " A Comparative Study of Unit Root Tests with Panel Data and a New Simple Test," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 61(0), pages 631-652, Special I.
- Philip Hans Franses & Bart Hobijn, 1997. "Critical values for unit root tests in seasonal time series," Journal of Applied Statistics, Taylor & Francis Journals, vol. 24(1), pages 25-48. Full references (including those not matched with items on IDEAS)
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