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A model of deliberative and aggregative democracy

Author

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  • Perote-Pena, Juan
  • Piggins, Ashley

Abstract

We present a model of collective decision making in which aggregation and deliberation are treated simultaneously. In our model, individuals debate in a public forum and potentially revise their judgements in light of deliberation. Once this process is exhausted, a rule is applied to aggregate post-deliberation judgements in order to make a social choice. Restricting attention to three alternatives, we identify conditions under which a democracy is “truth-revealing”. This condition says that the deliberation path and the aggregation rule always lead to the correct social choice being made, irrespective of the original profile of judgements and irrespective of the size of the electorate (provided the latter is finite).

Suggested Citation

  • Perote-Pena, Juan & Piggins, Ashley, 2012. "A model of deliberative and aggregative democracy," MPRA Paper 48914, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:48914
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    File URL: https://mpra.ub.uni-muenchen.de/48914/1/MPRA_paper_48914.pdf
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    References listed on IDEAS

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    1. Catherine Hafer & Dimitri Landa, 2007. "Deliberation as Self-Discovery and Institutions for Political Speech," Journal of Theoretical Politics, , vol. 19(3), pages 329-360, July.
    2. List, Christian & Pettit, Philip, 2002. "Aggregating Sets of Judgments: An Impossibility Result," Economics and Philosophy, Cambridge University Press, vol. 18(01), pages 89-110, April.
    3. Gaertner,Wulf, 2006. "Domain Conditions in Social Choice Theory," Cambridge Books, Cambridge University Press, number 9780521028745.
    4. List, Christian & Polak, Ben, 2010. "Introduction to judgment aggregation," Journal of Economic Theory, Elsevier, vol. 145(2), pages 441-466, March.
    5. Broome, John, 2006. "Weighing Lives," OUP Catalogue, Oxford University Press, number 9780199297702.
    6. repec:taf:raaexx:v:17:y:2010:i:3:p:iii-iv is not listed on IDEAS
    7. John List & Matti Liski, 2005. "Introduction," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 31(2), pages 121-121, June.
    8. Christian Papinot & Mircea Vultur, 2010. "Introduction," Post-Print hal-00671054, HAL.
    9. Dryzek, John S. & List, Christian, 2003. "Social Choice Theory and Deliberative Democracy: A Reconciliation," British Journal of Political Science, Cambridge University Press, vol. 33(01), pages 1-28, January.
    10. N. Lesca, 2010. "Introduction," Post-Print halshs-00640602, HAL.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Antoinette Baujard & Muriel Gilardone, 2013. "Individual judgments and social choice in Sen's idea of justice and democracy," Post-Print halshs-00950320, HAL.

    More about this item

    Keywords

    Social choice theory; deliberative democracy; epistemic perspective.;

    JEL classification:

    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations
    • D72 - Microeconomics - - Analysis of Collective Decision-Making - - - Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
    • D74 - Microeconomics - - Analysis of Collective Decision-Making - - - Conflict; Conflict Resolution; Alliances; Revolutions

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