Dynamic factor extraction of cross-sectional dependence in panel unit root tests

George Kapetanios

Journal of Applied Econometrics, 2007, vol. 22, issue 2, 313-338

Abstract: Recently, considerable emphasis has been placed on the problems arising out of cross-sectional dependence in panel unit root tests. This paper adopts the factor-based cross-sectional dependence paradigm of Bai and Ng (2005) but suggests alternative factor extraction methods. Some theoretical results for these methods are provided. Further, a detailed Monte Carlo study of these methods for multiple and persistent factors is undertaken. It is found that results are radically different from the serially uncorrelated single-factor case. Tests perform much worse and in some cases it is preferable not to correct at all for cross-sectional dependence. Copyright © 2007 John Wiley & Sons, Ltd.

Date: 2007
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Working Paper: Dynamic Factor Extraction of Cross-Sectional Dependence in Panel Unit Root Tests (2004)
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DOI: 10.1002/jae.943

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