Andy Sumner is an inter-disciplinary development economist, specializing in global poverty and inequality with a particular focus on middle-income and emerging economies.He has been listed by Foreign Policy magazine’s Top 100 Global Thinkers and Devex website’s ‘Global Development Leaders’ for his work on the ‘new bottom billion’ about poverty in middle-income countries.Sumner is Co-Director of King's International Development Institute, King's College London, and a Reader in International Development.