国际贸易因其所产生的高额实际利润而带来巨大的益处。使人更加确信国际贸易重要性的，是各超级大国之间为获取新市场、保护其商品得以销售的旧市场、以及毫无阻碍地从中进口原材料而展开的激烈争夺与竞争。国际贸易具有许多显著特征、优点和成果。国际贸易得以建立的主要原因，在于各国之间商品的相对成本存在差异。因此，一旦各国的相对成本不同，建立彼此之间的国际贸易便符合所有国家的利益。

International trade yields a tremendous benefit due to the high real profits which are generated from it. What adds to a person’s conviction about the importance of international trade is the ferocious fighting and fierce competition between the superpowers over the acquisition of new markets and the protection of old markets, to which their merchandise is disposed of, and from which they import raw materials without obstacle. International trade has a host of distinguishing features, merits and outcomes. The main reason behind the establishment of international trade is the disparity in the proportional costs of commodities between one country and another. It would therefore be in the interest of all countries to establish international trade between them once the proportional costs differed in each country.