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A model of deliberative and aggregative democracy

  • Perote-Pena, Juan
  • Piggins, Ashley

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).

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File URL: https://mpra.ub.uni-muenchen.de/48914/1/MPRA_paper_48914.pdf
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Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 48914.

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Date of creation: 23 Aug 2012
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Handle: RePEc:pra:mprapa:48914
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  1. Broome, John, 2006. "Weighing Lives," OUP Catalogue, Oxford University Press, number 9780199297702.
  2. 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.
  3. Christian List & Ben Polak, 2010. "Introduction to Judgment Aggregation," Cowles Foundation Discussion Papers 1753, Cowles Foundation for Research in Economics, Yale University.
  4. N. Lesca, 2010. "Introduction," Post-Print halshs-00640602, HAL.
  5. John List & Matti Liski, 2005. "Introduction," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 31(2), pages 121-121, 06.
  6. Gaertner,Wulf, 2006. "Domain Conditions in Social Choice Theory," Cambridge Books, Cambridge University Press, number 9780521028745, June.
  7. 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.
  8. 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.
  9. Christian Papinot & Mircea Vultur, 2010. "Introduction," Post-Print hal-00671054, HAL.
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