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Endogenous party platforms: ‘stochastic’ membership

Listed author(s):
  • Andrei M. Gomberg

    ()

    (Instituto Tecnológico Autónomo de México)

  • Francisco Marhuenda

    ()

    (Universidad Carlos III)

  • Ignacio Ortuño-Ortín

    ()

    (Universidad Carlos III)

Abstract We propose a model of endogenous party platforms with stochastic membership. The parties’ proposals depend on their membership, while the membership depends both on the proposals of the parties and on the unobserved idiosyncratic preferences of citizens over parties. An equilibrium of the model obtains when the members of each party prefer the proposal of the party to which they belong to, rather than the proposal of the other party. We prove the existence of such an equilibrium and study its qualitative properties. For the cases in which parties use either the average or the median to aggregate the preferences of their members, we show that if the unobserved idiosyncratic characteristics of the parties are similar, then parties make different proposals in the stable equilibria. Conversely, we argue that if parties differ substantially in their unobserved idiosyncratic characteristics, then the unique equilibrium is convergent.

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File URL: http://link.springer.com/10.1007/s00199-015-0936-1
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Article provided by Springer & Society for the Advancement of Economic Theory (SAET) in its journal Economic Theory.

Volume (Year): 62 (2016)
Issue (Month): 4 (October)
Pages: 839-866

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Handle: RePEc:spr:joecth:v:62:y:2016:i:4:d:10.1007_s00199-015-0936-1
DOI: 10.1007/s00199-015-0936-1
Contact details of provider: Web page: http://www.springer.com

Web page: http://saet.uiowa.edu/

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  1. Marcin Dziubiński & Jaideep Roy, 2011. "Electoral competition in 2-dimensional ideology space with unidimensional commitment," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 36(1), pages 1-24, January.
  2. John Roemer, 2011. "A theory of income taxation where politicians focus upon core and swing voters," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 36(3), pages 383-421, April.
  3. Ignacio Ortuno-Ortin & Anke Gerber, 1998. "Political compromise and endogenous formation of coalitions," Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 15(3), pages 445-454.
  4. Stephen Ansolabehere & William Leblanc & James Snyder, 2012. "When parties are not teams: party positions in single-member district and proportional representation systems," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 49(3), pages 521-547, April.
  5. Ramon Faulí-Oller & Efe A. Ok & Ignacio Ortuño-Ortín, 2003. "Delegation and polarization of platforms in political competition," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 22(2), pages 289-309, September.
  6. Caplin, Andrew & Nalebuff, Barry, 1997. "Competition among Institutions," Journal of Economic Theory, Elsevier, vol. 72(2), pages 306-342, February.
  7. Andrei Gomberg & Francisco Marhuenda & Ignacio Ortuño-Ortín, 2004. "A model of endogenous political party platforms," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 24(2), pages 373-394, August.
  8. Krasa, Stefan & Polborn, Mattias K., 2012. "Political competition between differentiated candidates," Games and Economic Behavior, Elsevier, vol. 76(1), pages 249-271.
  9. Poutvaara, Panu, 2003. "Party Platforms with Endogenous Party Membership," Public Choice, Springer, vol. 117(1-2), pages 79-98, October.
  10. repec:cup:apsrev:v:87:y:1993:i:01:p:34-47_09 is not listed on IDEAS
  11. Ignacio Ortuño Ortín & John E. Roemer, 2000. "Endogenous Party Formation And The Effect Of Income Distribution On Policy," Working Papers. Serie AD 2000-06, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
  12. Krasa, Stefan & Polborn, Mattias, 2010. "Competition between Specialized Candidates," American Political Science Review, Cambridge University Press, vol. 104(04), pages 745-765, November.
  13. repec:cup:apsrev:v:77:y:1983:i:04:p:974-990_25 is not listed on IDEAS
  14. John Aldrich, 1983. "A spatial model with party activists: implications for electoral dynamics," Public Choice, Springer, vol. 41(1), pages 63-100, January.
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