中文摘要：

区位对贸易的影响是一个由来已久的问题，但它作为区域经济学和国际经济学的交叉领域，一直被置于主流经济学之外。俄林和克鲁格曼作为诺贝尔经济学奖获得者，都将视角着眼于区位与贸易的交叉领域，分别创建了区际贸易理论和新经济地理学，可见区位对贸易的重要影响。通过对比并厘清两大理论体系之间的继承发展关系，在剖析区位与贸易之间相互影响机制的基础上，揭示出贸易的本质是区位问题，是供给和需求空间分布的均衡结果。

英文摘要：

The impact of location on trade is an age-old problem, however, as a cross field between regional economics and international economics, it has been excluded from the mainstream economics. Both as Nobel Prize winner of economics, Ohlin and krugman focus their attention on the cross field of location and trade, creating respectively the interregional trade theory and new economic geography, from which the significant influence of location on trade can be seen. Through comparison and clarification of the inheritance and development relations between the two big theoretic systems, and on the basis of analysis of the mutual influencing mechanism between location and trade, this paper reveals that the essence of trade is a location problem, an equilibrium result of spatial distribution of the supply and demand.