我国牛羊肉市场空间一体化及其网络结构研究  

Research on spatial integration and network structure of Chinese beef and mutton market

作　　者：丁存振 王赞 DING Cunzhen;WANG Zan(College of Economics and Management,Shandong Agricultural University,Taian 271018,China)

机构地区：[1]山东农业大学经济管理学院,山东泰安271018

出　　处：《黑龙江畜牧兽医》2024年第10期10-17,共8页Heilongjiang Animal Science And veterinary Medicine

基　　金：山东省羊产业技术体系项目(SDAIT-10-11);山东省社会科学规划项目(22DJJJ19)。

摘　　要：为了揭示牛羊肉市场空间一体化程度及其内在结构,本研究对2009年1月份—2022年8月份的全国各省份(不含西藏及港澳台地区)的牛肉和羊肉月度价格数据进行分析,基于价格信息溢出视角,运用前沿的基于时变参数向量自回归模型(time varying parameter-vector autoregression,TVP-VAR模型)的DY溢出指数对我国牛羊肉市场空间一体化水平进行测度,然后利用社会网络分析(social network analysis,SNA)方法分析其网络结构特征。结果表明:牛肉市场和羊肉市场空间一体化程度均较高且整体呈波动上升趋势,其中,牛肉市场空间一体化程度较羊肉市场更高,但两者差距不断缩小并趋同;牛肉市场和羊肉市场空间关联均呈现多线程、复杂紧密的网络结构形态,网络关系均较为稳定且具有明显的“小世界特征”;不同地区在网络中处于不同的角色和地位,其中,主产区(如山东省、河南省、四川省等)处于网络主导和中心地位,扮演着“中心行动者”角色,而主销区(如北京市、天津市、上海市等)处于从属和边缘地位,扮演着“边缘行动者”角色。说明建设全国统一大市场及市场调控应根据各地区市场地位有的放矢。In order to reveal the degree of spatial integration and its internal structure in the beef and mutton market,this study analyzed the monthly price data of beef and mutton from January 2009 to August 2022 in all provinces of China(excluding Xizang,Hong Kong,Macao and Taiwan).Based on the price information overflow perspective,the DY overflow index based on the time varying parameter-vector autoregression(TVP-VAR) model was used to measure the spatial integration level of China's beef and mutton market.Then,the social network analysis(SNA) method was used to analyze its network structure characteristics.The results showed that the spatial integration degree of beef market and mutton market was higher and the overall trend is fluctuating.The spatial integration degree of beef market was higher than that of mutton market,but the gap between the two markets was narrowing and converging.The spatial correlation between the beef market and the mutton market presented a multi-threaded,complex and tight network structure,and the network relationship was relatively stable and had obvious “small-world characteristics”.Different areas played different roles and positions in the network.Among them,the main production areas(such as Shandong Province,Henan Province,Sichuan Province,etc.) were in a dominant and central position in the network,playing the role of central actors,while the main sales areas(such as Beijing City,Tianjin City,Shanghai City,etc.) were in a subordinate and peripheral position,playing the role of peripheral actors.It indicated that the construction of the national unified large market and market regulation should be targeted according to the market position of each region.

关 键 词：牛羊肉市场 空间一体化 网络结构 溢出效应 价格 

分 类 号：F326.3[经济管理—产业经济]