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On the Origin of Polarization

Author

Listed:
  • John Duffy

    (Department of Economics, University of California, Irvine, California, 92697)

  • Seung Han Yoo

    (Department of Economics, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, Republic of Korea, 02841)

Abstract

We provide a dynamic, spatial model of group sorting and polarization based on observable group identity alone. Agents, who belong to one of two perfectly observable groups, are randomly matched to play an investment game in youth and old age, and make a location decision in between. Each agent’s ability is private information and the true distribution of each group’s of abilities (types) is uncertain, so agents have to form beliefs about these distributions in making both investment and location decisions. Further, agents have no preferences or special facilities for interacting with members of their own group. We characterize the equilibrium for this endogenous, dynamic spatial location model which involves the formation of higher order perceptions and we show that under certain conditions, a limiting outcome of the dynamical system is that the society becomes completely polarized with members of each group rationally choosing to congregate in distinct locations.

Suggested Citation

  • John Duffy & Seung Han Yoo, 2022. "On the Origin of Polarization," Discussion Paper Series 2202, Institute of Economic Research, Korea University.
    • Handle: RePEc:iek:wpaper:2202
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    File URL: http://econ.korea.ac.kr/~ri/WorkingPapers/w2202.pdf
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    References listed on IDEAS

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    1. Robert Shimer & Lones Smith, 2000. "Assortative Matching and Search," Econometrica, Econometric Society, vol. 68(2), pages 343-370, March.
    2. Patrick Legros & Andrew F. Newman, 2007. "Beauty Is a Beast, Frog Is a Prince: Assortative Matching with Nontransferabilities," Econometrica, Econometric Society, vol. 75(4), pages 1073-1102, July.
    3. Matthew O. Jackson, 2014. "Networks in the Understanding of Economic Behaviors," Journal of Economic Perspectives, American Economic Association, vol. 28(4), pages 3-22, Fall.
    4. Ekaterina Zhuravskaya & Maria Petrova & Ruben Enikolopov, 2020. "Political Effects of the Internet and Social Media," Annual Review of Economics, Annual Reviews, vol. 12(1), pages 415-438, August.
    5. Patrick Legros & Andrew Newman, 2007. "Beauty is a beast, frog is a prince :assortative matching in a nontransferable world," ULB Institutional Repository 2013/7022, ULB -- Universite Libre de Bruxelles.
    6. Gilat Levy & Ronny Razin, 2019. "Echo Chambers and Their Effects on Economic and Political Outcomes," Annual Review of Economics, Annual Reviews, vol. 11(1), pages 303-328, August.
    7. Kandori, Michihiro, 2002. "Introduction to Repeated Games with Private Monitoring," Journal of Economic Theory, Elsevier, vol. 102(1), pages 1-15, January.
    8. Milgrom, Paul & Shannon, Chris, 1994. "Monotone Comparative Statics," Econometrica, Econometric Society, vol. 62(1), pages 157-180, January.
    9. Becker, Gary S, 1973. "A Theory of Marriage: Part I," Journal of Political Economy, University of Chicago Press, vol. 81(4), pages 813-846, July-Aug..
    10. Charles M. Tiebout, 1956. "A Pure Theory of Local Expenditures," Journal of Political Economy, University of Chicago Press, vol. 64, pages 416-416.
    11. Patrick Legros & Andrew F. Newman, 2002. "Monotone Matching in Perfect and Imperfect Worlds," Review of Economic Studies, Oxford University Press, vol. 69(4), pages 925-942.
    12. Ettore Damiano & Hao Li, 2007. "Price discrimination and efficient matching," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 30(2), pages 243-263, February.
    13. Baccara, Mariagiovanna & Yariv, Leeat, 2016. "Choosing peers: Homophily and polarization in groups," Journal of Economic Theory, Elsevier, vol. 165(C), pages 152-178.
    14. Galeotti, Andrea & Ghiglino, Christian & Squintani, Francesco, 2013. "Strategic information transmission networks," Journal of Economic Theory, Elsevier, vol. 148(5), pages 1751-1769.
    15. Calvó-Armengol, Antoni & , & ,, 2015. "Communication and influence," Theoretical Economics, Econometric Society, vol. 10(2), May.
    16. Kets, Willemien & Sandroni, Alvaro, 2019. "A belief-based theory of homophily," Games and Economic Behavior, Elsevier, vol. 115(C), pages 410-435.
    17. Heidrun Hoppe & Benny Moldovanu & Emre Ozdenoren, 2011. "Coarse matching with incomplete information," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 47(1), pages 75-104, May.
    18. Yan Chen & Sherry Xin Li, 2009. "Group Identity and Social Preferences," American Economic Review, American Economic Association, vol. 99(1), pages 431-457, March.
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    More about this item

    Keywords

    Polarization; group bias; homophily; private monitoring; sorting; Bayesian learning.;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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