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Inefficiencies on linking decisions

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  • Rafael Hortala-Vallve

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Abstract

Jackson and Sonnenschein (2006) show that by linking collective decisions the incentive costs can become negligible and, at the limit, ex-ante efficiency can be achieved. In a voting situation this implies that the agents` intensity of preferences can be taken into account even in the absence of monetary transfers. Rather than considering a limiting result we want to analyse what can be achieved while we consider a finite number of linked decisions. We first characterise the set of implementable mechanisms and show that ex-ante efficiency can never be achieved. We then proceed to relax the efficiency requirement and prove that, even when we just require unanimity, the mechanism cannot be sensitive to the agents` intensity of preference.

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Bibliographic Info

Article provided by Springer in its journal Social Choice and Welfare.

Volume (Year): 34 (2010)
Issue (Month): 3 (March)
Pages: 471-486

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Handle: RePEc:spr:sochwe:v:34:y:2010:i:3:p:471-486

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  1. Debraj Ray & Kfir Eliaz & Ronny Razin, 2004. "Group Decision-Making in the Shadow of Disagreement," Working Papers 2004.83, Fondazione Eni Enrico Mattei.
  2. Matthew O Jackson & Hugo F Sonnenschein, 2007. "Overcoming Incentive Constraints by Linking Decisions -super-1," Econometrica, Econometric Society, vol. 75(1), pages 241-257, 01.
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  7. Rafael Hortala-Vallve, 2012. "Qualitative voting," Journal of Theoretical Politics, , vol. 24(4), pages 526-554, October.
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Cited by:
  1. Drexl, Moritz & Kleiner, Andreas, 2013. "Preference Intensities in Repeated Collective Decision-Making," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79832, Verein für Socialpolitik / German Economic Association.
  2. Rafael Hortala-Vallve, 2007. "Qualitative Voting," Economics Series Working Papers 320, University of Oxford, Department of Economics.

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