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A Note on Regressions with Integrated Variables


  • Hildegart A. Ahumada

    () (Universidad Torcuato Di Tella)


The purpose of this note is to contribute to modeling time series that may be characterized as integrated. In particular, a discussion about the use of standard distributions in regression models is included and some essential concepts are previously reviewed to this effect. The main objective is to analyze, through examples, the transformations required to formulate the model with stationary variables, emphasizing the fact that these transformations are not necessarily required. Likewise, several cases of practical interest are presented, such as the representation in levels or in differences in the Granger causality analysis and the autoregressive distributed lag models.

Suggested Citation

  • Hildegart A. Ahumada, 2006. "A Note on Regressions with Integrated Variables," Ensayos Económicos, Central Bank of Argentina, Economic Research Department, vol. 1(45), pages 79-94, October.
  • Handle: RePEc:bcr:ensayo:v:1:y:2006:i:45:p:79-94

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    References listed on IDEAS

    1. Granger, C. W. J. & Newbold, P., 1974. "Spurious regressions in econometrics," Journal of Econometrics, Elsevier, vol. 2(2), pages 111-120, July.
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    More about this item


    autoregressive distributed lag models; Granger causality; integrated time series; stationarity;

    JEL classification:

    • C18 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Methodolical Issues: General
    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes


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