Senior Adviser on Economics, and Manager of the Innovation Fund, United Nations Population Fund (UNFPA); and member of the Lead Economist Network of the UN. Responsible for managing research and analysis, and shaping policy dialogues on the world's most pressing development challenges, including the linkages between demographic change -- population growth, population aging, urbanization and migration -- and social, economic and environmental developments. He has worked extensively on employment, poverty, income distribution and social protection; economic development, sovereign debt, development financing and macroeconomic policies; trade, commodity markets, investment and structural change; as well as the green economy, sustainable development, and climate change. Before assuming his current functions, he worked for over ten years with the United Nations Conference on Trade and Development (UNCTAD), where he co-authored flagship reports on the world economy and the world's least developed countries. He has published on a range of issues, including the implications of demographic change for development; sustainable development; and food security.