As Vanguard's Global Chief Economist and Global Head of the Investment Strategy Group, I manage a 60+ global research and client-facing team which develops multi-asset-class allocation strategies and conducts research on the capital markets, the global economy, portfolio construction, and related investment topics. I am also a key member of the senior portfolio management team for Vanguard’s Fixed Income Group, which oversees nearly $1trillion in assets under management. As Chair of Vanguard's Strategic Asset Allocation (SAA) Committee, I oversee and determine the asset-allocation strategies of more than $1 trillion global multi-asset-class portfolio solutions, such as Vanguard's Target Retirement Funds. I am a frequent keynote speaker on economic trends, capital market returns, and investment strategies, and have published white papers in leading academic and practitioner journals. In 2004 I was selected as a Faculty Research Fellow of the prestigious National Bureau of Economic Research for my contributions to the fields of economic history and U.S. business cycles. Before earning my Ph.D. in macroeconomics and finance at Duke University, I graduated summa cum laude with a B.A. from Saint Joseph's University in Philadelphia, PA.Specialties: Macroeconomics, asset allocation strategies, fixed income strategies, portfolio management, financial simulation, asset-class modelling, public speaking, economic history.