中国钢铁产业国际市场势力实证研究

An Empirical Study on International Market Forces of China's Iron and Steel Industry

本文首先运用边际成本模型估算了中国钢铁产业的国际市场势力,发现中国加入世贸组织后钢铁产业的国际市场势力下降,且加入世贸组织前后钢铁产业国际市场势力均较小;然后选取SITC(Rev.2)中两位码为67的钢铁产品,运用剩余需求弹性模型实证研究了其在韩国、印度、日本和美国这些主要出口国市场上的国际市场势力,发现在韩国、日本和印度市场的国际市场势力依次降低,在美国市场的国际市场势力尚未形成,说明中国钢铁产业出口具有一定的国际市场势力,但与此同时,总体上出口单价和进口单价之比有下降趋势,其低成本优势也趋于减弱,中国从钢铁产业贸易中获得的比较利益正不断减少,钢铁产业没有明显的现实国际市场势力。

This paper uses the marginal cost model to estimate international market power of China＇s iron and steel industry and finds that international market forces of China＇s iron and steel industry have dropped after joining the WTO, and international market forces of China＇s iron and steel industry were small before and after China＇s joining the WTO. Then it selects the iron and steel of the SITC （Rev.2） 67 and uses the expand residual demand elasticity model to empirically study their international market forces in the Republic of Korea, India, Japan and the United States. It is found that market forces are in turn reduced in the Republic of Korea, Japanese and Indian markets, and market forces have not yet formed in the U.S. market. It indicates that China＇s iron and steel products export has a certain amount of international market forces, and the ratio of export price and import price tends to decrease and low-cost advantages have gradually weakened. Comparative interests in trade obtained by China＇s iron and steel products have gradually reduced. Real international market forces of China＇s iron and steel products are not obvious.