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Checking for Saddlepoint Stability: An Easy Test


  • Boucekkine, Raouf
  • Le Van, Cuong


In this paper we present a theoretically founded procedure in order to check for saddlepoint stability of rational expectations models. The proposed device uses some specific perturbed finite time approximations of the models and allows for an explicit theoretical foundation. Numerical evidence are presented to study the feasibility of the procedure regarding to the scales and the spectra of the models. In particular, it is shown how to apply it on nonlinear models in connection with relaxation resolution algorithms. Actually, this paper gives theoretical basis to the heuristic sensitivity tests traditionally conducted for saddlepoint stability assessment. Citation Copyright 1996 by Kluwer Academic Publishers.

Suggested Citation

  • Boucekkine, Raouf & Le Van, Cuong, 1996. "Checking for Saddlepoint Stability: An Easy Test," Computational Economics, Springer;Society for Computational Economics, vol. 9(4), pages 317-330, November.
  • Handle: RePEc:kap:compec:v:9:y:1996:i:4:p:317-30

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    Cited by:

    1. de la Croix, David & Docquier, Frederic & Liegeois, Philippe, 2007. "Income growth in the 21st century: Forecasts with an overlapping generations model," International Journal of Forecasting, Elsevier, vol. 23(4), pages 621-635.
    2. Jean-Bernard Chatelain & Kirsten Ralf, 2014. "A finite set of equilibria for the indeterminacy of linear rational expectations models," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-01053484, HAL.
    3. Bouzahzah, Mohamed & De la Croix, David & Docquier, Frederic, 2002. "Policy reforms and growth in computable OLG economies," Journal of Economic Dynamics and Control, Elsevier, vol. 26(12), pages 2093-2113, October.
    4. Loumrhari, Ghizlan, 2016. "Vieillissement démographique et réforme paramétrique des retraites. Les enseignements d’un modèle EGC-GI pour le Maroc
      [Ageing and pension reform. A computational olg model for Morocco]
      ," MPRA Paper 74077, University Library of Munich, Germany.
    5. Raouf Boucekkine & Cuong Le Van & Katheline Schubert, "undated". "How to Get the Blanchard-Kahn Form from a General Linear Rational Expectations Model," Computing in Economics and Finance 1996 _035, Society for Computational Economics.
    6. Jean-Michel Grandmont, 2013. "Tribute to Cuong Le Van," International Journal of Economic Theory, The International Society for Economic Theory, vol. 9(1), pages 5-10, March.
    7. Jean-Bernard Chatelain & Kirsten Ralf, 2014. "A finite set of equilibria for the indeterminacy of linear rational expectations models," Working Papers halshs-01044432, HAL.

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