Andrew Ang is the Ann F. Kaplan Professor of Business at Columbia Business School and Chair of the Finance and Economics Division. He is a financial economist whose work centers on understanding the nature of risk and return in asset prices. His work spans municipal and government bond markets, equities, investment management and portfolio allocation, and alternative investments. Prof Ang is a Research Associate of the National Bureau of Research and serves as an associate editor for several leading journals. He has received numerous grants from government and major industry organizations including the National Science Foundation, Netspar, Q-Group, INQUIRE-UK, INQUIRE-Europe, and the BSI Gamma Foundation. Prof Ang has consulted for banks, hedge funds, asset managers, and other financial institutions. He currently serves as advisor to Martingale Asset Management and the Norwegian sovereign wealth fund.