Panel Unit Root Tests in the Presence of a Multifactor Error Structure

M. Hashem Pesaran, L. Vanessa Smith, Takashi Yamagata
Authors registered in the RePEc Author Service: Takashi Yamagata and M Hashem Pesaran ()

Discussion Papers from Department of Economics, University of York

Abstract: This paper extends the cross sectionally augmented panel unit root test proposed by Pesaran (2007) to the case of a multifactor structure. The basic idea is to exploit information regarding the unobserved factors that are shared by other time series in addition to the variable under consideration. Importantly, our test procedure only requires specification of the maximum number of factors, in contrast to other panel unit root tests based on principal components that require in addition the estimation of the number of factors as well as the factors themselves. Small sample properties of the proposed test are investigated by Monte Carlo experiments, which suggest that it controls well for size in almost all cases, especially in the presence of serial correlation in the error term, contrary to alternative test statistics. Empirical applications to Fisher's inflation parity and real equity prices across different markets illustrate how the proposed test works in practice.

Keywords: Panel unit root tests; Cross Section Dependence; Multi-factor Residual Structure; Fisher Inflation Parity; Real Equity Prices. (search for similar items in EconPapers)
JEL-codes: C12 C15 C22 C23 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-ets
Date: 2008-03
View citations in EconPapers

Downloads: (external link)
http://www.york.ac.uk/depts/econ/documents/dp/0803.pdf Main text (application/pdf)

Related works:
Working Paper: Panel Unit Root Tests in the Presence of a Multifactor Error Structure (2008)
Working Paper: Panel Unit Root Tests in the Presence of a Multifactor Error Structure (2007)
Working Paper: Panel Unit Root Tests in the Presence of a Multifactor Error Structure (2007)
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: http://EconPapers.repec.org/RePEc:yor:yorken:08/03

Access Statistics for this paper

More papers in Discussion Papers from Department of Economics, University of York
Address: Department of Economics and Related Studies, University of York, York, YO10 5DD, United Kingdom
Contact information at EDIRC.
Series data maintained by Michael Shallcross ().