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Private Information: Similarity as Compatibility

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Author Info
João Correia-da-Silva () (Faculdade de Economia. Universidade do Porto.)
Carlos Hervés-Beloso () (Facultad de Económicas. Universidad de Vigo.)

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Abstract

We investigate the continuity of equilibrium in differential information economies with a finite number of agents. In this setting, agents can make contingent contracts based on events that are commonly observed. With private information modelled as finite partitions of a compact and metrizable space of states of nature, we introduce a topology on information that takes into account the compatibility of information fields in assessing similarity between private information fields. This topology allows us to establish upper semicontinuity of the private core correspondence.

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File URL: http://www.fep.up.pt/investigacao/workingpapers/04.09.14_WP155_Joao.pdf
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Publisher Info
Paper provided by Universidade do Porto, Faculdade de Economia do Porto in its series FEP Working Papers with number 155.

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Length: 19 pages.
Date of creation: Sep 2004
Date of revision:
Handle: RePEc:por:fepwps:155

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Related research
Keywords: Differential Information Economy Asymmetric Information Radner Equilibrium Private Core Topologies on Information.

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Find related papers by JEL classification:
C62 - Mathematical and Quantitative Methods - - Mathematical Methods and Programming - - - Existence and Stability Conditions of Equilibrium
D50 - Microeconomics - - General Equilibrium and Disequilibrium - - - General
D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information
G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Ezra Einy & Ori Haimanko & Diego Moreno & Benyamin Shitovitz, 2005. "On the continuity of equilibrium and core correspondences in economies with differential information," Economic Theory, Springer, vol. 26(4), pages 793-812, November. [Downloadable!] (restricted)
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  2. Cotter, Kevin D., 1987. "Convergence of information, random variables and noise," Journal of Mathematical Economics, Elsevier, vol. 16(1), pages 39-51, February. [Downloadable!] (restricted)
  3. Cotter, Kevin D., 1986. "Similarity of information and behavior with a pointwise convergence topology," Journal of Mathematical Economics, Elsevier, vol. 15(1), pages 25-38, February. [Downloadable!] (restricted)
  4. Kannai, Yakar, 1970. "Continuity Properties of the Core of a Market," Econometrica, Econometric Society, vol. 38(6), pages 791-815, November. [Downloadable!] (restricted)
  5. Erik Balder & Nicholas Yannelis, 2006. "Continuity properties of the private core," Economic Theory, Springer, vol. 29(2), pages 453-464, October. [Downloadable!] (restricted)
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