完全竞争市场、产品品质差异与国际产业内贸易均衡

Differences in Product Quality in a Perfectly Competitive Market and Intra-industry Trade Balance

经济全球化以来,国际贸易形式的发展以国家之间的产业内贸易为主。大量的实证研究表明,产业内贸易的产品品质差异化和贸易量存在显著的正相关。然而,在理论文献上却少有严谨的理论模型来加以分析。研究表明,通过沿用Brander的Iceberg产业内贸易模型,通过理论模型的演绎分析,可以发现交叉价格、自身价格效果、运输成本是影响在产品品质差异提升时产业内贸易量是否提升或是下降的主要因素,同时两国的福利水平也会有所提高。

With the development of economic globalization, the international trade forms of development is dominated by in- tra-industry trade between the countries. Many empirical studies have shown that there is a significant positive correlation between product quality differentiation of intra-industry trade and trade volume. However, there are, in the theoretical literature, less rigor- ous theoretical models to analyze it. Research has shown that through adopted Brander of the iceberg model of intra-industry trade and through theoretical analysis, there will occur that cross price, the effects of their prices, transportation costs are the major fac- tors of affecting product increase or decrease of intra-industry trade at the time of upgrading quality difference, meanwhile the welfare level of the two countries will also increase.