%0 Journal Article %T Posterior Implementation versus Ex-Post Implementation %+ Paris-Jourdan Sciences Economiques (PJSE) %+ Paris School of Economics (PSE) %+ University College of London [London] (UCL) %+ SAP %+ Universität Bonn = University of Bonn %+ Lawrence Berkeley National Laboratory [Berkeley] (LBNL) %A Jehiel, Philippe %A Meyer-Ter-Vehn, Moritz %A Moldovanu, Benny %A Zame, William R. %< avec comité de lecture %@ 0165-1765 %J Economics Letters %I Elsevier %V 97 %N 1 %P 70-73 %8 2007-10 %D 2007 %R 10.1016/j.econlet.2007.02.023 %K Posterior implementation %K Ex-post implementation %K Multi-dimensional types %Z Humanities and Social Sciences/Economics and FinanceJournal articles %X Posterior implementation is a weaker concept than ex-post implementation. It requires that agents' strategies are optimal against others' strategies, given the precise information made available by the mechanism. Whereas ex-post implementation is generically impossible, we show by example that this need not be the case for posterior implementation. %G English %L halshs-00754198 %U https://pjse.hal.science/halshs-00754198 %~ SHS %~ UNIV-PARIS1 %~ ENS-PARIS %~ ENPC %~ PJSE %~ PSE %~ CNRS %~ EHESS %~ INRA %~ AO-ECONOMIE %~ PARISTECH %~ PSL %~ AGREENIUM %~ INRAE %~ PSE-POST-PRINT %~ ENS-PSL