The simulation results prove that: when countries show differences in resources, comparative advantages and scale economy are the natural causes of internationalspecialization;
实验结果表明：在两国存在资源禀赋差异的条件下，比较利益和规模经营是形成国际分工的自然原因；
2
The paper also holds the view that the model of internationalspecialization has experienced the transition from inter-industry and intra-industry division to intra-product division.
同时，本论文认为国际分工模式已发生了重大变化，产业间和产业内分工的形式逐渐向产品内分工模式过渡。
3
The trade term of less-developed regions will deteriorate if these regions enter into the internationalspecialization with labor-extensive and resource-extensive primary products for the long time.