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Why not use standard panel unit root test for testing PPP

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Author Info
Johan Lyhagen () (Department of Information Science, Uppsala University)

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Abstract

In this paper we show the consequences of applying a panel unit root test that assumes independence between the cross-sections when testing for a purchasing power parity relationship. The distribution of the tests investigated, including the IPS test of Im et al (2003), are influenced by a common stochastic trend which is usually not accounted for. The result is that the empirical size tends to one with the number of cross-sections. Hence, it is of crucial importance to account for this cross-sectional dependency.

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File URL: http://economicsbulletin.vanderbilt.edu/2008/volume3/EB-07C20098A.pdf
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Publisher Info
Article provided by Economics Bulletin in its journal Economics Bulletin.

Volume (Year): 3 (2008)
Issue (Month): 26 ()
Pages: 1-11
Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Handle: RePEc:ebl:ecbull:v:3:y:2008:i:26:p:1-11

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Find related papers by JEL classification:
C2 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables
C3 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

  1. Chihwa Kao & Suzanne McCoskey, 1997. "A Residual-Based Test Of The Null Of Cointegration In Panel Data," Econometrics 9711002, EconWPA. [Downloadable!]
    Other versions:
  2. Jushan Bai & Serena Ng, 2004. "A PANIC Attack on Unit Roots and Cointegration," Econometrica, Econometric Society, vol. 72(4), pages 1127-1177, 07. [Downloadable!] (restricted)
    Other versions:
  3. Moon, H.R. & Perron, B., 2002. "Testing for a Unit Root in Panels with Dynamic Factors," Cahiers de recherche 18-2002, Centre interuniversitaire de recherche en économie quantitative, CIREQ. [Downloadable!]
    Other versions:
  4. Culver, Sarah E & Papell, David H, 1997. "Is There a Unit Root in the Inflation Rate? Evidence from Sequential Break and Panel Data Models," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 12(4), pages 435-44, July-Aug.. [Downloadable!]
  5. Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, . "Some Cautions on the Use of Panel Methods for Integrated Series of Macro-Economic Data," Working Papers 170, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University. [Downloadable!]
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  6. Anindya Banerjee & Massimiliano Marcellino & Chiara Osbat, 2005. "Testing for PPP: Should we use panel methods?," Empirical Economics, Springer, vol. 30(1), pages 77-91, January. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Wagner, Martin, 2005. "On PPP, Unit Roots and Panels," Economics Series 176, Institute for Advanced Studies. [Downloadable!]
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  2. Christian Dreger & Hans-Eggert Reimers, 2006. "Hysteresis and Persistence in the Course of Unemployment: The EU and US Experience," Discussion Papers of DIW Berlin 572, DIW Berlin, German Institute for Economic Research. [Downloadable!]
  3. Tor Jacobson & Johan Lyhagen & Rolf Larsson & Marianne Nessén, 2002. "Inflation, Exchange Rates and PPP in a Multivariate Panel Cointegration Model," 10th International Conference on Panel Data, Berlin, July 5-6, 2002 D4-2, International Conferences on Panel Data. [Downloadable!]
    Other versions:
  4. António Afonso & Christophe Rault, 2008. "What do we really Know about Fiscal Sustainability in the EU? A Panel Data Diagnostic," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
    Other versions:
  5. Imed Drine & Christophe Rault, 2008. "Purchasing Power Parity for Developing and Developed Countries. What can we Learn from Non-Stationary Panel Data Models?," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
    Other versions:
  6. Gengenbach,Christian & Palm,Franz & Urbain,Jean-Pierre, 2004. "Panel Unit Root Tests in the Presence of Cross-Sectional Dependencies: Comparison and Implications for Modelling," Research Memoranda 040, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization. [Downloadable!]
  7. Caporale, Guglielmo Maria & Cerrato, Mario, 2004. "Panel Data Tests of PPP. A Critical Overview," Economics Series 159, Institute for Advanced Studies. [Downloadable!]
    Other versions:
  8. Breitung, J. & Pesaran, M.H., 2005. "Unit Roots and Cointegration in Panels," Cambridge Working Papers in Economics 0535, Faculty of Economics, University of Cambridge. [Downloadable!]
    Other versions:
  9. Olli Castrén & Chiara Osbat & Matthias Sydow, 2006. "What drives investors’ behaviour in different FX market segments? A VAR-based return decomposition analysis," Working Paper Series 706, European Central Bank. [Downloadable!]
  10. António Afonso & Christophe Rault, 2007. "What We Really Know about Fiscal Sustainability in the EU? A Panel Data Diagnostic," Working Papers 2007/20, Department of Economics at the School of Economics and Management (ISEG), Technical University of Lisbon.. [Downloadable!]
  11. Berka, Martin, 2006. "Non-linear adjustment in law of one price deviations and physical characteristics of goods," MPRA Paper 8606, University Library of Munich, Germany, revised Dec 2007. [Downloadable!]
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  12. Gengenbach,Christian & Palm,Franz C. & Urbain,Jean-Pierre, 2005. "Panel Cointegration Testing in the Presence of Common Factors," Research Memoranda 050, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization. [Downloadable!]
  13. Richard G. Anderson & Hailong Qian & Robert H. Rasche, 2006. "Analysis of panel vector error correction models using maximum likelihood, the bootstrap, and canonical-correlation estimators," Working Papers 2006-050, Federal Reserve Bank of St. Louis. [Downloadable!]
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