Professor Elroy Dimson is Leverhulme Emeritus Fellow at London Business School, Fellow and Visiting Professor at Cambridge Judge Business School, and Chairman of the Strategy Council for the Norwegian Government Pension Fund. He has served London Business School as Professor of Finance, Faculty Governor, Chair of the Finance and of the Accounting areas, Dean of MBA Programmes, and Director of the Initiative on Foundation and Endowment Asset Management. He has been an Associate Editor of the Journal of Finance, Review of Finance and other journals, and is co-author of Triumph of the Optimists and the Global Investment Returns Yearbook 2010 with Paul Marsh and Mike Staunton; and of Endowment Asset Management with Shanta Acharya. Elroy is Director and Past-President of the European Finance Association, and is a member of the advisory boards of the CFA Institute, FTSE Group, and Russell Investments. He sits on the investment committees of Guy’s and St Thomas’ Charity, UnLtd [the Foundation for Social Entrepreneurs], and the University of London endowment. Elroy’s research, writing and consulting blends the themes of long-term financial market performance and endowment asset management. He has been elected to Honorary Fellowships of the UK Society of Investment Professionals and of the Institute of Actuaries, and to Membership of the US Financial Economists Roundtable.