 He was formerly Director of Research at the Reuters Institute for the Study of Journalism and a research fellow at Green Templeton College, Oxford.Among his most important contributions have been the co-development of a method for assessing the economic contributions of copyright to national economies that is used by the World Intellectual Property Organization, analyses of the effects of media subsidies and other public support on companies and markets, studies exploring the economic influences on media behavior, and analysis of economic issues in media and communications policy.He has an H-index score of 43, an i10-index score of 135, and is ranked in the top 2% of scholars on Academia.edu.