He also holds an appointment as Professor of Management and Organizations at the University of Michigan Ross School of Business.
From 1980 to 1987 he was a statistical consultant in the computing center of the Albert Einstein College of Medicine in the Bronx, becoming an Assistant Professor of Psychiatry (biostatistics).
[4] When do firms, modeled as independent agents in most social scientific analysis, collaborate to achieve common goals?
He shows that through the twentieth century, representatives from financial institutions played a central role in the interlock network.
This thesis is expanded in his latest book, which highlights the growing fracturing of the U.S. corporate elite over the past forty years, and suggests broad consequences for the governance of the U.S.