Welcome to my webpage. I am the Nippon Life Professor of Finance at the Wharton School of the University of Pennsylvania and I conduct both theoretical and empirical research in finance. My current work focuses on the relationship between financial markets and the macro economy, as well as the organization, skill and performance of financial intermediaries. I received my PhD from the Fuqua School of Business at Duke University. I joined the Wharton School in 2014 and previously taught at the Graduate School of Business of Stanford University and at the Kellogg School of Management of Northwestern University. I am also a research associate at the NBER.