Steven Stone is Chief of UN Environment's Resources & Markets Branch (R&M).  He holds a PhD in Resource Economics from Cornell University and has more than 20 years of professional experience in environmental and natural resource management.

As Chief of Branch, Steven directs a team dedicated to furthering the knowledge base and outreach and support to countries on environmental and resource economics as key components of economic, trade and investment policy. Some of the key flagships he has helped to incubate include the Green Economy Initiative, the Economics of Ecosystems and Biodiversity (TEEB), and the Partnership for Action on Green Economy (PAGE).

Prior to joining UN Environment, Steven worked at the Inter-American Development Bank, serving in a number of capacities from Resource Economist in Washington to Environmental Specialist in the Bank's offices in both Jamaica and Ecuador, to Country Representative in Honduras. Before joining IDB, Steven led field research in Brazil as part of the team at the Instituto do Homen e Meio Ambiente in Belem, Para State, for a number of years. He has also worked at the World Bank on resource and agricultural economics with Uma Lele (an independent scholar and development economist), among others.