John's University where she teaches U.S. American history (late-19th and 20th centuries). She is a graduate of Dartmouth College and Cornell University. She has been the recipient of the Harvard Business School Alfred D. Chandler Jr. Traveling Fellowship in Business History and Institutional Economic History and the Einstein Fellowship of the Jacob Rader Marcus Center of the American Jewish Archives. She specializes in the study of American business networks and her research bridges the divide between social and economic history through the innovative used of quantitative and qualitative methods. Her book, Gentlemen Bankers: The World of J.P. Morgan, was published by Harvard University Press in May 2013.