摘要
叶类蔬菜因其不耐贮运而在北京市场的自给率高于果类蔬菜,在空间流通方向上也与果类蔬菜有明显区别。价格作为自动调控蔬菜空间运销方向的指挥棒,对调节蔬菜供求有明显作用。通过研究京津冀鲁辽代表性批发市场间的芹菜价格传导关系发现,北京市场的芹菜价格向河北、天津有较强的传导作用;河北市场对北京芹菜价格变动呈同向反应且传导强度由强转弱,天津市场对北京芹菜价格冲击的反应更迅速。京外市场芹菜价格变动方差由北京解释的部分在30%以下,但北京市场价格变动对河北和天津芹菜价格方差的贡献度均在80%以上。可见,京外市场芹菜价格变动对北京市场的影响较小,但距北京较近的河北和天津市场,其芹菜价格变化受北京影响则较大。提高芹菜为代表的北京叶类蔬菜自给率,及其在环北京市场的价格与供求信息互动程度,对保证芹菜价格平稳并提高资源配置效率具有重要意义。
Price plays a significant role in regulating the supply and demand of vegetables due to its directingof the spatial distribution of vegetables automatically. This paper studied price transmission relationship ofcelery between different wholesale markets of Beijing, Tianjin, Hebei Province, Shandong Province andLiaoning Provinces. The results showed that the celery price had a strong transmission from Beijing market toHebei and Tianjin market; the reaction of the celery price in Hebei market presented the same direction as thatof Beijing and the conducting strength was from strong to weak, Tianjin market had more intense response tothe Beijing market in celery price change. Celery price variance of outside Beijing markets explained by theBeijing section was 30% or less, but the contribution of Beijing market to the price variance of celery in Tianjinand Hebei markets was more than 80%. It was obviously that the impact of celery price changes in marketsoutside Beijing was small on the Beijing market, but the celery price changes in Tianjin and Hebei marketswhich were closer to Beijing market were influenced by Beijing market greatly. Therefore, improving the selfsufficiency rate of celery as the representative of leafy vegetables in Beijing market and the degree ofinformation interaction of price and market supply and demand between Beijing and neighboring markets issignificant for ensuring stable celery prices and enhancing efficiency of resource allocation.
出处
《中国农学通报》
2015年第35期278-285,共8页
Chinese Agricultural Science Bulletin
基金
"叶类蔬菜产业技术体系北京市创新团队建设专项(blvt-21)"资助
北京农学院定额人才培养项目"农产品流通效率与路径优化问题研究"的资助
"教育部新世纪优秀人才支持计划(NCET-10-009)"项目的资助
关键词
价格传导
批发市场
芹菜
环北京市场
price transmission
wholesale market
celery
Beijing and its neighboring markets
