The Office of the Chief Economist advises the Secretary of Agriculture on the economic implications of policies and programmes affecting the U.S. food and fibre system and rural areas. The Chief Economist coordinates, reviews, and approves the USDA's commodity and farm sector forecasts. In addition, the Chief Economist oversees the activities of the Coordinator of Agricultural labour Affairs, the Director of Sustainable Development, the World Agricultural Outlook Board and the Office of Risk Assessment & Cost-Benefit Analysis.