Resource supplies and changing world agricultural comparative advantage
在动态框架下将赫克歇尔-俄林比较优势理论应用于农业，研究贸易流、资源供给和要素含量之间的关系，发现资源丰裕度的变化是解释世界农产品贸易结构演变的重要因素。
This paper advances consideration of the Heckscher-Ohlin (H-0) theory of comparative advantage to agriculture in a dynamic setting. The dynamic relationship among trade flows, resource supplies, and factor contents is studied. The view that special circumstances in the agricultural sector render the H-0 theory inapplicable as a guide to agricultural trade is challenged. Consistent with the H-0 theory, the results suggest that changing world patterns of resource abundance are an important explanation of the evolving structure of world trade in agriculture commodities.