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Cheap talk en dos dimensiones: condiciones necesarias y suficientes para que haya revelación perfecta en una dimensión

Author

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  • Luis Alberto Romero Ibarra

    (Secretaría de Hacienda y Crédito Público)

Abstract

This paper develops a model of cheap talk `a la Crawford and Sobel whose state variable takes values within the unit square. No characterization of all equilibria has been found. This paper focuses on equilibria where the Sender reveals all the information in the direction that is perpendicular to the vector of disagreement. The foremost result of this analysis states that there exists perfect revelation in this dimension if and only if the random state vector has components that are independent in the directions of agreement and disagreement.

Suggested Citation

  • Luis Alberto Romero Ibarra, 2009. "Cheap talk en dos dimensiones: condiciones necesarias y suficientes para que haya revelación perfecta en una dimensión," Estudios Económicos, El Colegio de México, Centro de Estudios Económicos, vol. 24(2), pages 303-313.
    • Handle: RePEc:emx:esteco:v:24:y:2009:i:2:p:303-313
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    File URL: https://estudioseconomicos.colmex.mx/index.php/economicos/article/view/121/123
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    More about this item

    Keywords

    Cheap talk; two dimensional; perfect revealing equilibrium in the dimension of agreement.;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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