Society for Institutional and Organizational Economics

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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SIOE 2027 — University of Warwick

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Coventry, UK · 18–20 July 2027
SIOE conference photo: Dean Williamson and Benito Arrunada at SIOE 2015.
SIOE conference photo: Ronald Coase (right) with conference organizer Lee Benham during the inaugural ISNIE conference 1997 in St. Louis.
SIOE conference photo: Mattia Fochesato keynote address, SIOE 2026
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Dean Williamson and Benito Arrunada at SIOE 2015.

About SIOE

The Society promotes rigorous theoretical and empirical investigation of the nature, behavior, and governance of organizations and institutions. Its members use approaches drawn from various disciplines (including economics, strategy, political science, law, history, sociology, and anthropology).

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Updates from SIOE and the field

· Federica Carugati

The 2026 SIOE Awards

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