About the Author
Giacomo Negro is professor of organization and management and professor of sociology (by courtesy) at Emory University's Goizueta Business School. He is a coauthor of Concepts and Categories: Foundations for Sociological and Cultural Analysis (Columbia, 2019) with Hannan, among others. Michael T. Hannan is the StrataCom Professor of Management emeritus in the Stanford University Graduate School of Business and professor emeritus of sociology at Stanford University. Susan Olzak is professor emerita of sociology at Stanford University.