Here are my slides for the talk I gave at the 2019 INEM Conference in Helsinki. Here is an updated presentation that I will give in Zurich and at the University of Warwick.
Barbara Bergmann
Ronald Coase
Elinor and Vincent Ostrom
Philip Wicksteed
Alfred Marshall
A couple of pictures from Zurich (courtesy of Catherine Herfeld).
Pavel Kuchař 
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