Mitchell Hoffman, an associate professor of strategic management at the University of Toronto’s Rotman School of Management and a research associate at the NBER, is a new codirector of the Personnel Economics Working Group. Hoffman’s research focuses on the determinants of workplace productivity and human resource economics, in particular on the hiring process and the role of various sources of information, including employee referrals, in contributing to hiring outcomes. Hoffman received his BA in economics from Yale University and his PhD from the University of California, Berkeley. He became an NBER affiliate in 2005.