Hoje, 16/3/21: Online Social Choice Seminar

16 March – Franz Dietrich* “Fully Bayesian Aggregation” (Hosted by Marcus Pivato)* CNRS and Paris School of Economics


1PM GMT: 8 AM New York, 2PM  Paris, 4PM PM in Moscow, 10PM PM in Seoul, and 2 AM (next day) in Auckland


Abstract: Can a group be an orthodox rational agent? This requires the group’s aggregate preferences to follow expected utility (static rationality) and to evolve by Bayesian updating (dynamic rationality). Group rationality is possible, but the only preference aggregation rules which achieve it (and are minimally Paretian and continuous) are the linear-geometric rules, which combine individual values linearly and individual beliefs geometrically. Linear-geometric preference aggregation contrasts with classic linear-linear preference aggregation, which combines both values and beliefs linearly, and achieves only static rationality. Our characterisation of linear-geometric preference aggregation implies as corollaries a characterisation of linear value aggregation (Harsanyi’s Theorem) and a characterisation of geometric belief aggregation.


Zoom link:
https://cyu-fr.zoom.us/j/99921596809?pwd=eVJtdTczUk9uNkJmSmpuM2VDa2Ivdz09
Meeting ID: 999 2159 6809Passcode: 28172214

About Mauricio Bugarin

Mauricio Soares Bugarin is full professor at the Economics Department of the University of Brasilia, Brasilia, Brazil. He received his PhD from the University of Illinois at Urbana-Champaign in 1997 and is currently Leader of the Economics and Politics Research Group (CNPq-UnB). From 2006 to 2011 he was full professor of Economics at Insper Institute, São Paulo, Brazil, where he served as the director of undergraduate studies in Economics and created the joint degree program in Economics and Business Administration. Prof. Bugarin is a research fellow of the Brazilian National Research Council (CNPq) and served as a member of the Standing Committee of the Latin American Chapter of the Econometric Society from 2007 to 2011. He has produced numerous research articles published in peer reviewed journals, including the Journal of Mathematical Economics, Oxford Academic Papers, Public Choice, and Social Choice and Welfare; a book on the control of public expenditure in Brazil published by the Konrad Adenauer Foundation; several academic book chapters; and has received several academic prizes including Brazilian National Treasure Secretariat Prizes (Public Finance), a National Health Economics Prize, and the Haralambos Simeonides Prize for the best article in Economics published in a year by a Brazilian author. Prof. Bugarin’s main interests include public economics, public finance and the relationship between economics and politics. He regularly teaches PhD courses in game theory and mechanism design, the economics of incentives and information and positive political economics.
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