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Testing Parameter Constancy and super Exogeneity in Econometric Equations


  • Jansen, Eilev S.
  • Teräsvirta, Timo

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


The paper is concerned with testing super exogeneity in a single equation that can either be linear or partially nonlinear. A joint test for testing both weak exogeneity and a form of invariance, which together amount to super exogeneity, is presented and its properties discussed. The considerations also include testing parameter constancy and modelling parameter nonconstancy prior to testing super exogeneity. The practical application of the tests is demonstrated by an example in which testing super exogeneity in a previously published consumption function for Norway is considered. The results are compared with the previous conclusions and found not to disagree with them.

Suggested Citation

  • Jansen, Eilev S. & Teräsvirta, Timo, 1995. "Testing Parameter Constancy and super Exogeneity in Econometric Equations," SSE/EFI Working Paper Series in Economics and Finance 53, Stockholm School of Economics.
  • Handle: RePEc:hhs:hastef:0053

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    References listed on IDEAS

    1. Timothy Dunne & Mark J. Roberts & Larry Samuelson, 1989. "The Growth and Failure of U. S. Manufacturing Plants," The Quarterly Journal of Economics, Oxford University Press, vol. 104(4), pages 671-698.
    2. Magnus Blomstrom & Robert E. Lipsey & Lennart Ohlsson, 1989. "What Do Rich Countries Trade with Each Other? R&D and the Composition of U.S. and Swedish Trade," NBER Working Papers 3140, National Bureau of Economic Research, Inc.
    3. repec:ilo:ilowps:209169 is not listed on IDEAS
    4. Jordan GL. & Valhne JE., 1981. "Domestic employment effects of direct investment abroad by two Swedish multinationals," ILO Working Papers 992091693402676, International Labour Organization.
    5. Irving B. Kravis & Robert E. Lipsey, 1988. "The Effect of Multinational Firms' Operations on Their Domestic Employment," NBER Working Papers 2760, National Bureau of Economic Research, Inc.
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    More about this item


    Changing seasonality; invariance; linearity testing; model specification; parameter stability; weak exogeneity;

    JEL classification:

    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection


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