Informational smallness and the scope for limiting information rents

Alia Gizatulina and Martin Hellwig

Journal of Economic Theory, 2010, vol. 145, issue 6, 2260-2281

Abstract: For an incomplete-information model of public-good provision with interim participation constraints, we show that efficient outcomes can be approximated, with approximately full surplus extraction, when there are many agents and each agent is informationally small. The result holds even if agents' payoffs cannot be unambiguously inferred from their beliefs. The contrary result of Neeman [Z. Neeman, The relevance of private information in mechanism design, J. Econ. Theory 117 (2004) 55-77] rests on an implicit uniformity requirement that is incompatible with the notion that agents are informationally small because there are many other agents who have information about them.

Keywords: Surplus; extraction; Mechanism; design; BDP; Informational; smallness; Correlated; information; Universal; type; space; Public; goods (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (5)

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Working Paper: Informational Smallness and the Scope for Limiting Information Rents (2009)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jetheo:v:145:y:2010:i:6:p:2260-2281

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