Senior advisors The Senior Advisors provide advice on the IGC's strategic thinking and insight into emerging growth and development issues. Senior advisors Shanta Devarajan Professor of the Practice of Development, Georgetown University Donald Kaberuka Special Envoy, African Union Jennifer Musisi Senior Advisor, Harvard Kennedy School of Government Ngozi Okonjo-Iweala Director-General, World Trade Organization Nicholas Stern IG Patel Professor of Economics and Government, London School of Economics and Political Science (LSE)