Why Governments Tax or Subsidize Trade : Evidence from Agriculture

agricultural economics agricultural policies agricultural prices agricultural production agricultural products agricultural sector agriculture apples barley beef cash crops coffee commodities consumers cotton deforestation democracy developing countries econometric models economic development egg eggs exports farmer farmers farming food crops food prices food products garlic human capital import quotas income income distribution industrial countries industrialization international trade jute land degradation land productivity maize market access meat milk mulch oilseeds orange peas pig meat planting population growth pork poultry processed foods produce productivity rapeseed rice rubber rye sesame sheep meat soil fertility staple foods sugar sugar sorghum taxation tea tobacco trade negotiations trade policies urbanization variable costs vegetables vegetation wages wheat world markets wto