我国棉花进口市场集中度与价格弹性的研究

Study on Import Market Concentration and Price Elasticity of China’s Cotton Import Trade

我国是国际棉花市场上最重要的贸易主体之一,棉花也是我国需要大量进口的大宗商品。本文采用进口市场集中度指标分析表明我国棉花进口来源市场高度集中;运用回归分析法测算我国棉花自不同来源国家进口的价格弹性,并用边际分析方法研究进口价格弹性在我国棉花进口来源变化中所起的作用。结果表明我国棉花进口来源逐渐集中于具有进口价格弹性优势的国家,这样有利于节约我国棉花进口总支出、平均支出和应对价格高涨风险。

China is one of the most important trade partners in the interna-tional cotton market,and China needs to import large quantities of cotton which belongs to the bulk stock.In this paper,the import market concentration index analysis shows that the sources of China’ s cotton import concentrated highly.Regression analysis method is used to analyze the import price elasticity,and the marginal analysis method is used to study the role that the price elasticity of Chi-na’s cotton import plays in the changes of sources of China’s cotton import.The result shows that the sources of China’s cotton import are gradually concen-trated on the nations from which import-price elasticity have advantages,which helps us to save the total expenditure,the average expenditure on cotton imports,and respond to price risks.