The WAEES agricultural econometric models are built with policy analysis in mind. Various government programs which substantively affect the performance of agriculture are directly captured within the global structure of the model. Domestic supports such as input subsidies, price supports, deficiency payments, whole farm payments, direct payments, etc. which are production distorting are included. Trade barriers such as import and export tariffs are also included. Policy analysis hinges on either changes in the parameters of existing policies or the introduction of new policies. Agribusiness, trade organizations, and policy makers often use policy analysis in their decision making process.