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Seasonal fractional integration with structural break. An application to the German GNP data


  • Luis Gil-Alana

    () (University of Navarra, Faculty of Economics)


This paper deals with the analysis of the German nominal GNP quarterly data (1973q1 – 1996q4) using a new approach based on seasonal fractional integration that allows us to incorporate a structural break that is endogenously determined by the model. The results show that the break occurs at 1990q2, the time of the German re-unification, and the order of integration is slightly above 1 before the break, and strictly smaller than 1 (though highly persistent) after the unification.

Suggested Citation

  • Luis Gil-Alana, 2007. "Seasonal fractional integration with structural break. An application to the German GNP data," Economics Bulletin, AccessEcon, vol. 3(32), pages 1-6.
  • Handle: RePEc:ebl:ecbull:eb-07c20015

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    References listed on IDEAS

    1. Jushan Bai & Pierre Perron, 1998. "Estimating and Testing Linear Models with Multiple Structural Changes," Econometrica, Econometric Society, vol. 66(1), pages 47-78, January.
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    JEL classification:

    • C2 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables
    • C5 - Mathematical and Quantitative Methods - - Econometric Modeling


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