The Society for Institutional and Organizational Economics is an international learned society for the economic study of institutions and organizations. Founded in 1997 as the International Society for New Institutional Economics (ISNIE) and renamed SIOE in 2014, it brings together economists, legal scholars, political scientists and management researchers at an annual peer-reviewed conference, and awards four prizes named after Ronald Coase, Douglass North, Elinor Ostrom and Oliver Williamson.
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The audience attending a session.
Updates from SIOE and the field
Angela Zhang wins the Douglass North Best Book Award, Matteo Tranchero the Ronald H. Coase Dissertation Award, and Ngoma, Sievert, Jaravel, Nunn and Weigel the Oliver E. Williamson Best Conference Paper Award.
Read moreabout The 2026 SIOE Awards
SIOE 2027 will take place from Sunday 18 to Tuesday 20 July 2027 at the University of Warwick, in Coventry, UK.
Read moreabout Save the date: SIOE 2027 at the University of Warwick
Lisa Bernstein is elected Second Vice-President, and Charles Angelucci, Virginia Minni and Mark Dincecco join the Board of Directors.
Read moreabout SIOE 2026 Election Results
Professor Thráinn Eggertsson passed away on June 18, 2026, at the age of 85. He was one of the founding fathers of the New Institutional Economics (NIE) in 1997.
Read moreabout In Memoriam: Professor Thráinn Eggertsson
December 6-12, 2026, Mexico City, Mexico Co-sponsored by Instituto Tecnológico Autónomo de México (ITAM) Apply by July 31, 2026
Read moreabout Call for Applications: The Ronald Coase Institute Workshop on Institutional AnalysisThe Society for Institutional and Organizational Economics welcomes papers and awards submissions for its 30th annual conference, which will take place on July 13-15 in Fontainebleau, France.
Read moreabout Papers and awards submissions for SIOE 2026Richard N. Langlois (University of Connecticut) has just published a new (text)book, titled "Advanced Introduction to The Economics of Organization."
Read moreabout New Book: "The Economics of Organization" by Richard N. LangloisWhile social media have created a range of well-documented benefits, the list of negative effects for democracy, individuals, and society at large is growing (see here). The argument is easily made that social media’s negative effects must be contained. The question is how, and by whom?
Read moreabout CfP: Workshop on Economic Governance of Social MediaIOEA (Institutional and Organizational Economics Academy) in Cargèse (Corsica - France), May 12-16, 2025. 11th Workshop on Relational Contracts at BFI at the University of Chicago, September 19-20, 2025.
Read moreabout 2 Conferences and 1 Summer School: calls for papers