依据传统的贸易分工理论,不同国家生产技术和资源禀赋上的不同所导致的最终产品的价格差异是贸易分工和贸易利益产生的源泉。当一国某一产业技术水平较高且密集使用的要素禀赋相对丰裕时,这些产业将由于比较优势的存在而成为一国的出口产业。因此,对外出口规模的扩张既是一国内部良好生产条件的自然外在反映,也成为一国经济利益获取大小的关键。早期中心国家每一次世界经济霸权地位的确立也无不伴随着大量商品的对外输出,19世纪中后期的英国以及20世纪中期的美国 According to the traditional theory of trade division of labor, the difference in production technology and resource endowment in different countries leads to the difference in the final product price as the source of trade division and trade benefits. When a country’s industry has a relatively high technological level and its intensive use of resources is relatively abundant, these industries will become a country’s export industry due to the existence of comparative advantages. Therefore, the expansion of the external export scale is not only a natural external reflection of good domestic production conditions, but also the key to obtaining the size of a country’s economic interests. The establishment of each world economic hegemony of the early center countries was also accompanied by the export of a large number of commodities. The United Kingdom in the middle and late 19th century and the United States in the middle of the 20th century.