INFORMATION ACQUISITION AND EFFICIENT MECHANISM DESIGN BY DIRK BERGEMANN and JUUSO VÄLIMÄKI COWLES FOUNDATION PAPER NO. 1038 COWLES FOUNDATION FOR RESEARCH IN ECONOMICS
نویسندگان
چکیده
1 We consider a general mechanism design setting where each agent can acquire (covert) information before participating in the mechanism. The central question is whether a mechanism exists that provides the efficient incentives for information acquisition ex-ante and implements the efficient allocation conditional on the private information ex-post. It is shown that in every private value environment the Vickrey-Clark-Groves mechanism guarantees both ex-ante as well as ex-post efficiency. In contrast, with common values , ex-ante and ex-post efficiency cannot be reconciled in general. Sufficient conditions in terms of sub-and supermodularity are provided when (all) ex-post efficient mechanisms lead to private under-or over-acquisition of information.
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from the National Science Foundation (grants SES-0112047 and SES-0351500) and the Alfred P. Sloan Foundation is gratefully acknowledged. Any conclusions, findings, or opinions are those of the authors and do not necessarily reflect the views of any funding organization. Auctions have provided a fruitful area for combining economic theory with econometric analysis in order to understand behavior...
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