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A long memory panel unit root test: PPP revisited

Author

Listed:
  • Andersson, Jonas

    (Department of Statistics)

  • Lyhagen, Johan

    () (Dept. of Economic Statistics, Stockholm School of Economics)

Abstract

In this paper two techniques, long memory and panel data models, are combined in order to increase the power of unit root tests. The power is shown to be always better against fractional alternatives and usually against autoregressive alternatives. The test is then used to reanalyze data sets investigated by Cheung and Lai (1993), Oh (1996) and Papell (1997) who studied the purchasing power parity. In some cases, the test rejected the hypothesis of no cointegration between foreign and domestic prices where the other authors tests did not.

Suggested Citation

  • Andersson, Jonas & Lyhagen, Johan, 1999. "A long memory panel unit root test: PPP revisited," SSE/EFI Working Paper Series in Economics and Finance 303, Stockholm School of Economics.
  • Handle: RePEc:hhs:hastef:0303
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    Citations

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    Cited by:

    1. Kristian Jönsson, 2005. "Cross-sectional Dependency and Size Distortion in a Small-sample Homogeneous Panel Data Unit Root Test," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 67(3), pages 369-392, June.
    2. Badi H. Baltagi & Chihwa Kao, 2000. "Nonstationary Panels, Cointegration in Panels and Dynamic Panels: A Survey," Center for Policy Research Working Papers 16, Center for Policy Research, Maxwell School, Syracuse University.

    More about this item

    Keywords

    Unit root; Long memory; Purchasing power parity;

    JEL classification:

    • C12 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Hypothesis Testing: General
    • C14 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Semiparametric and Nonparametric Methods: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models

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