Duncan is Head of Research at Oxfam GB and was previously a Visiting Fellow at the Institute for Development Studies. He is author of From Poverty to Power: How Active Citizens and Effective States can Change the World (Oxfam International, June 2008).
Duncan was also a Visiting Fellow at Notre Dame University, a Senior Policy Adviser on Trade and Development at the Department for International Development (DFID), a Policy Analyst on trade and globalization at CAFOD, the Catholic aid agency for England and Wales and Head of Research and Engagement at the Just Pensions project on socially responsible investment.
He is the author of several books on Latin America including Silent Revolution: The Rise and Crisis of Market Economics in Latin America (2003, 2nd edition), Faces of Latin America (2006, 3rd edition) and Hidden Lives: Voices of Children in Latin America and the Caribbean (1998).