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Strategy proofness and unanimity in private good economies with single-peaked preferences

Author

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  • Mostapha Diss

    (Université de Lyon, Lyon, F-69007, France ; CNRS, GATE Lyon St Etienne,F-69130 Ecully, France, Université Jean Monnet, Saint-Etienne, F-42000, France)

  • Ahmed Doghmi

    (University of Rabat, Mohammadia School of Engineering, the QSM Laboratory, Avenue Ibn Sina B.P. 765 Agdal, 10100 Rabat, Morocco)

  • Abdelmonaim Tlidi

    (University of Marrakech, National School of Applied Science - Safi, Route Sidi Bouzid B.P. 63, 46000 Safi, Morocco)

Abstract

In this paper we examine the relation between strategy-proofness and unanimity in a domain of private good economies with single-peaked preferences. We prove that, under a mild condition, a social choice function satisfies strategy-proofness if and only if it is unanimous. As implication, we show that when the property of citizen sovereignty holds, strategy proofness and Maskin monotonicity become equivalent. We also give applications to implementation literature: We provide a full characterization for dominant strategy implementation, standard Nash implementation, and partially honest Nash implementation and we prove that these theories are equivalent.

Suggested Citation

  • Mostapha Diss & Ahmed Doghmi & Abdelmonaim Tlidi, 2015. "Strategy proofness and unanimity in private good economies with single-peaked preferences," Working Papers 1528, Groupe d'Analyse et de Théorie Economique Lyon St-Étienne (GATE Lyon St-Étienne), Université de Lyon.
    • Handle: RePEc:gat:wpaper:1528
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    References listed on IDEAS

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    Cited by:

    1. Diss, Mostapha & Doghmi, Ahmed & Tlidi, Abdelmonaim, 2016. "Strategy proofness and unanimity in many-to-one matching markets," MPRA Paper 75927, University Library of Munich, Germany, revised 08 Dec 2016.
    2. Doghmi Ahmed, 2016. "On Nash Implementability in Allotment Economies under Domain Restrictions with Indifference," The B.E. Journal of Theoretical Economics, De Gruyter, vol. 16(2), pages 767-795, June.
    3. Doghmi, Ahmed, 2011. "A Simple Necessary Condition for Partially Honest Nash Implementation," MPRA Paper 67231, University Library of Munich, Germany, revised 14 Oct 2015.

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    More about this item

    Keywords

    Strategy-proofness; Unanimity; Maskin monotonicity; Private good economies; Single-peaked preferences;
    All these keywords.

    JEL classification:

    • C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
    • D71 - Microeconomics - - Analysis of Collective Decision-Making - - - Social Choice; Clubs; Committees; Associations

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