Mary O'Sullivan has been Professor of Economic History at the University of Geneva since August 2010. Her research focuses on the history of capital, industries and enterprises, and the comparative history of economic development.
Her book, Dividends of Development: Securities Markets in the History of US Capitalism, 1866-1922 , was published by Oxford University Press in 2016. Professor O'Sullivan was a Fellow at the Wissenschaftskolleg zu Berlin from September 2016 to July 2017.
Past positions include Associate Professor of Management at The Wharton School of the University of Pennsylvania and Associate Professor of Strategy at INSEAD.