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Testing for a unit root in a random coefficient panel data model

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  • Westerlund, Joakim
  • Larsson, Rolf

Abstract

This paper proposes new unit root tests in the context of a random autoregressive coefficient panel data model, in which the null of a unit root corresponds to the joint restriction that the autoregressive coefficient has unit mean and zero variance. The asymptotic distributions of the test statistics are derived and simulation results are provided to suggest that they perform very well in small samples.

Suggested Citation

  • Westerlund, Joakim & Larsson, Rolf, 2012. "Testing for a unit root in a random coefficient panel data model," Journal of Econometrics, Elsevier, vol. 167(1), pages 254-273.
  • Handle: RePEc:eee:econom:v:167:y:2012:i:1:p:254-273 DOI: 10.1016/j.jeconom.2011.11.009
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    References listed on IDEAS

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    Citations

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    Cited by:

    1. Horváth, Lajos & Trapani, Lorenzo, 2016. "Statistical inference in a random coefficient panel model," Journal of Econometrics, Elsevier, vol. 193(1), pages 54-75.
    2. Skrobotov, Anton & Turuntseva, Marina, 2017. "Testing the Hypothesis of a Unit Root for Independent Panels," Working Papers 021707, Russian Presidential Academy of National Economy and Public Administration.
    3. Lajos Horváth & Gregory Rice, 2014. "Extensions of some classical methods in change point analysis," TEST: An Official Journal of the Spanish Society of Statistics and Operations Research, Springer;Sociedad de Estadística e Investigación Operativa, vol. 23(2), pages 219-255, June.

    More about this item

    Keywords

    Panel unit root test; Random coefficient autoregressive model; Local asymptotic power;

    JEL classification:

    • C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
    • C33 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Models with Panel Data; Spatio-temporal Models

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