Elroy Dimson is the BGI Professor of Investment Management and a Faculty Governor of London Business School. Dr Dimson has held visiting positions at the Bank of England and at the Universities of Chicago and California (Berkeley). His research covers risk analysis, performance measurement, asset allocation, portfolio strategy and financial market history. With Paul Marsh and Mike Staunton, he wrote ‘Triumph of the Optimists’ (Princeton University Press, 2002), which presents and analyses over 100 years of stock market performance in each of 16 countries. In the US their research won the Roger Murray prize from the Institute for Quantitative Research in Finance. With Dr Shanta Acharya he authored 'Endowment Asset Management' (Oxford University Press, 2007), a study of the investment strategies followed by the universities of Oxford and Cambridge and by their constituent colleges. Dr Dimson has served on the boards of several investment organizations, pension funds and charitable endowments.