provide it are part of the larger Agribusiness industry. Agricultural labor Irrigation Seeds Fertilizers Production Sector Farming Farm Mechanization Processing Sector Primary Processing Secondary Processing Marketing Sector Farmers' Market Support Sector Education Cooperatives Governments Professionals Studies and Reports Studies of agribusiness often come from the academic fields of agricultural economics and management studies, sometimes called agribusiness management. To promote more development of food economies, many government agencies support the research and publication of economic studies and reports exploring agribusiness and agribusiness practices. Some of these studies are on foods produced for export and are derived from agencies focused on food exports. These agencies include the Foreign Agricultural Service (FAS) of the U.S. Department of Agriculture, Agriculture and Agri-Food Canada (AAFC), Austrade, and New Zealand Trade and Enterprise (NZTE). The Federation of International Trade Associations publishes studies and reports by FAS and AAFC, as well as other non-governmental organizations on its website. In their book A Concept of Agribusiness, Ray Goldberg and John Davis provided a rigorous economic framework for the field. They traced a complex value-added chain that begins with the farmer's purchase of seed and livestock and ends with a product fit for the consumer's table. Agribusiness boundary expansion is driven by a variety of transaction costs. As concern over global warming intensifies, biofuels derived from crops are gaining increased public and scientific attention. This is driven by factors such as oil price spikes, the need for increased energy security, concern over greenhouse gas emissions from fossil fuels, and support from government subsidies. In Europe and in the US, increased research and production of biofuels have been mandated by law. See also Agrarian law Agrarian reform Agricultural machinery industry Agricultural marketing Agricultural value chain Agroecology Animal–industrial complex Biofuel Contract farming Energy crop Environmental impact of agriculture Factory farming Industrial agriculture Land banking Agribusiness in Kenya References Citations Cited sources Further reading Gitta, Cosmas and South, David (2012). Southern Innovator Magazine Issue 3: Agribusiness and Food Security: United Nations Office for South-South Cooperation. ISSN 2222-9280 https://web.archive.org/web/20160304034828/http://www.ifama.org/files/IS_Ledesma_Formatted.pdf Agricultural economics Business Agriculture