He primarily works in the fields of environmental and development economics, has published widely, and has worked for a number of international organisations including the United Nations Development Programme (UNDP) in New York, and the Center for International Forestry Research (CIFOR) in Indonesia.
His current research includes the continuation of work on forest management and land-use change in tropical countries, as well as work on urban land use and research on similar topics in his home country, the UK.