IDEAS home Printed from https://ideas.repec.org/p/arx/papers/2509.02513.html
   My bibliography  Save this paper

Bayesian Polarization

Author

Listed:
  • Tuval Danenberg

Abstract

We study belief polarization among Bayesian agents observing public information about a multidimensional state. Baliga et al. (2013) show that divergence in the sense of first-order stochastic dominance is impossible for one dimensional beliefs, but we find that in multidimensional settings it can occur for all marginal beliefs, even with infinitely many signals. At the same time, we extend their impossibility result: divergence in the sense of multidimensional stochastic dominance is impossible. For an intermediate stochastic order, polarization may arise only in the short-run. We provide necessary and sufficient conditions on signal structures for persistent polarization and discuss implications for polarization in actions.

Suggested Citation

  • Tuval Danenberg, 2025. "Bayesian Polarization," Papers 2509.02513, arXiv.org.
    • Handle: RePEc:arx:papers:2509.02513
    as

    Download full text from publisher

    File URL: http://arxiv.org/pdf/2509.02513
    File Function: Latest version
    Download Restriction: no
    ---><---

    More about this item

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:arx:papers:2509.02513. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: arXiv administrators (email available below). General contact details of provider: http://arxiv.org/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.