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Choosing Wisely: The Natural Multi-Bidding Mechanism

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  • EHLERS, Lars

Abstract

Pérez-Castrillo and Wettstein (2002) propose a multi-bidding mechanism to determine a winner from a set of possible projects. The winning project is implemented and its surplus is shared among the agents. In the multi-bidding mechanism each agent announces a vector of bids, one for each possible project, that are constrained to sum up to zero. In addition, each agent chooses a favorite a object which is used as a tie-breaker if several projects receive the same highest aggregate bid. Since more desirable projects receive larger bids, it is natural to consider the multi-bidding mechanism without the announcement of favorite projects. We show that the merits of the multi-bidding mechanism appear not to be robust to this natural simplification. Specifically, a Nash equilibrium exists if and only if there are at least two individually optimal projects and all individually optimal projects are efficient.

Suggested Citation

  • EHLERS, Lars, 2005. "Choosing Wisely: The Natural Multi-Bidding Mechanism," Cahiers de recherche 2005-14, Universite de Montreal, Departement de sciences economiques.
    • Handle: RePEc:mtl:montde:2005-14
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    File URL: http://hdl.handle.net/1866/543
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    Cited by:

    1. Licun Xue & Lingling Zhang, 2012. "Bidding and sequential coalition formation with externalities," International Journal of Game Theory, Springer;Game Theory Society, vol. 41(1), pages 49-73, February.
    2. Echenique, Federico & Núñez, Matías, 2025. "Price and Choose," Department of Economics, Working Paper Series qt5dw4g7k5, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
    3. Laurent-Lucchetti, Jérémy & Leroux, Justin, 2011. "Choosing and sharing," Games and Economic Behavior, Elsevier, vol. 73(1), pages 296-300, September.
    4. Pérez-Castrillo, David & Quérou, Nicolas, 2012. "Smooth multibidding mechanisms," Games and Economic Behavior, Elsevier, vol. 76(2), pages 420-438.
    5. Toyotaka Sakai, 2012. "Fair waste pricing: an axiomatic analysis to the NIMBY problem," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 50(2), pages 499-521, June.
    6. Federico Echenique & Mat'ias N'u~nez, 2022. "Price & Choose," Papers 2212.05650, arXiv.org, revised Apr 2023.

    More about this item

    Keywords

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    JEL classification:

    • D62 - Microeconomics - - Welfare Economics - - - Externalities
    • D78 - Microeconomics - - Analysis of Collective Decision-Making - - - Positive Analysis of Policy Formulation and Implementation

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