摘要
通过计算与分析1999-2011年棉花年度中国棉花价格指数(CC Index328)的价格波动系数、波动幅度、波动指数与国内棉花产量、国际棉花产量、棉花生产成本之间的相关系数,分析棉花价格波动与棉花产量的相关关系。结果表明,棉花价格波动指数与国内棉花产量变动之间存在显著负相关,与国际棉花产量变动相关性不显著,说明棉花价格的变动与国内棉花产量变动有关,与世界棉花产量变动相关性不大;棉花价格波动系数与国内、国际棉花产量相关性都不显著,说明棉花价格波动幅度与国内外棉花总产量基本无关;棉花价格与生产成本存在显著正相关。
The correlation coefficient of the price fluctuation coefficient, fluctuation range, fluctuation index of China’s cotton price with domestic cotton yield, global cotton yield and production cost in 1999-2011 was calculated and analyzed; and the correlation between fluctuation of cotton price and cotton yield was studied. The results showed that the price fluctuation index of cotton was significantly negatively correlated with the fluctuation of domestic cotton yield, while was not significantly correlated with global cotton yield, indicating that cotton price in China was mainly affected by domestic cotton yield, and was not affected by global cotton yield. The cotton price fluctuation coefficient was not significantly correlated with domestic or global cotton yield, indicating that cotton price fluctuation range was not correlated to domestic or global cotton yield. The cotton price was significantly positively correlated with production cost.
出处
《湖北农业科学》
北大核心
2013年第16期4002-4005,共4页
Hubei Agricultural Sciences
基金
国家自然科学基金项目(71161019)
关键词
棉花价格
波动指数
波动系数
产量
成本
cotton price
fluctuation index
fluctuation coefficient
yield
cost
