中国蔬菜Issue(5)：52-57,6.
我国不同类型蔬菜价格波动分解与贡献分析
Price Decomposition and Contribution to Price Fluctuation of Different Vegetables in China
摘要
Abstract
Using seasonal decomposition and HP filter method,this paper decomposed the wholesale prices of 28 vegetables into trend fluctuation,cyclical fluctuation,seasonal fluctuation and random fluctuation for more details of the characters and laws for different vegetables,and summarized the differences between different vegetables price fluctuation and changes. The results indicated that in recent years the impact of seasonal fluctuation to vegetables price fluctuation became gradually weaken,while the impact of random fluctuation to fruit and leafy vegetables was strengthened constantly. There were big differences in the influences brought by different fluctuation types on vegetable prices. Fruit vegetable price was more significantly affected by seasonal fluctuation. While leafy vegetable price was more easily affected by random fluctuation. Cyclical fluctuation had remarkable impacted to ginger and garlic price fluctuation.关键词
蔬菜/价格/H-P滤波法/季节波动/随机波动/趋势波动/周期波动Key words
Vegetable/Price/H-P filter method/Seasonal fluctuation/Random fluctuation/Trend fluctuation/Cyclical fluctuation引用本文复制引用
沈辰,张玉梅,李志强..我国不同类型蔬菜价格波动分解与贡献分析[J].中国蔬菜,2015,(5):52-57,6.基金项目
国家科技支撑计划项目 （）
