Mark J.P. Anson is the President and Executive Director of Investment Services at Nuveen Investments. Previously, he was the chief executive officer of Hermes Pensions Management Ltd. Before joining Hermes, Anson was the chief investment officer of the $245 billion California Public Employees' Retirement System (CalPERS)—the largest pension fund in the United States. Anson is the author or coauthor of four financial books, including the Handbook of Alternative Assets (Wiley). He has published over eighty research articles on topics ranging from alpha and beta separation to corporate governance.