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Modellierung von Preiserwartungen durch neuronale Netze

Author

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  • Heinemann, Maik
  • Lange, Carsten

Abstract

Das Papier untersucht, wie Erwartungsbildung mit Hilfe neuronaler Netze modelliert werden kann. Die Grundlage bildet ein Cobweb-Modell, in dem Firmen Preiserwartungen auf Basis eines Feedforward-Netzes bilden. Zunächst wird anhand von Simulationen gezeigt, daß Firmen durch neuronale Erwartungsbildung approximativ rationale Erwartungen bilden können. Im Gegensatz zur Hypothese rationaler Erwartungen ist dafür die Kenntnis des relevanten Modells nicht mehr erforderlich, lediglich Beobachtungen des Marktpreises und der ihn beeinflussenden Variablen vergangener Perioden werden benötigt. Abschließend erfolgt eine allgemeine Analyse neuronalen Lernens. Es ist möglich, Bedingungen dafür abzuleiten, daß die neuronalen Erwartungen der Firmen asymptotisch mit rationalen Preiserwartungen übereinstimmen.

Suggested Citation

  • Heinemann, Maik & Lange, Carsten, 1997. "Modellierung von Preiserwartungen durch neuronale Netze," Hannover Economic Papers (HEP) dp-203, Leibniz Universität Hannover, Wirtschaftswissenschaftliche Fakultät.
    • Handle: RePEc:han:dpaper:dp-203
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    File URL: http://diskussionspapiere.wiwi.uni-hannover.de/pdf_bib/dp-203.pdf
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    References listed on IDEAS

    as
    1. Marcet, Albert & Sargent, Thomas J., 1989. "Convergence of least squares learning mechanisms in self-referential linear stochastic models," Journal of Economic Theory, Elsevier, vol. 48(2), pages 337-368, August.
    2. Kuan, Chung-Ming & White, Halbert, 1994. "Adaptive Learning with Nonlinear Dynamics Driven by Dependent Processes," Econometrica, Econometric Society, vol. 62(5), pages 1087-1114, September.
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    Cited by:

    1. Heinemann, Maik, 2000. "Adaptive learning of rational expectations using neural networks," Journal of Economic Dynamics and Control, Elsevier, vol. 24(5-7), pages 1007-1026, June.

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    More about this item

    Keywords

    Rationale Erwartungen; Lernen; Neuronale Netze;
    All these keywords.

    JEL classification:

    • C45 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Neural Networks and Related Topics
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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