农业规模经济的市场力量效应研究——基于黑龙江、吉林和山东的分析  

The market power effect of agricultural scale economies:An empirical analysis of Heilongjiang,Jilin and Shandong Provinces

作　　者：史修艺 王颜齐[1] SHI Xiu-yi;WANG Yan-qi(College of Economics and Management,Northeast Agricultural University,Harbin,Heilongjiang 150030,China)

机构地区：[1]东北农业大学经济管理学院,黑龙江哈尔滨150030

出　　处：《农业现代化研究》2021年第1期94-102,共9页Research of Agricultural Modernization

基　　金：国家社会科学基金项目(20BJY135)。

摘　　要：实现农业现代化发展需要推进农业适度规模经营,实践表明农户实行农业规模经营不仅是为了获得规模报酬效应所带来的收益,而且还是为了获得市场力量效应所带来的收益。利用C-D函数,建立产量与价格增量之间的函数关系,设定价格增量产量弹性系数概念,构建引入市场力量效应的农业规模经济理论模型,并将农业规模经济分为"规模报酬效应阶段"、"规模报酬效应+市场力量效应阶段"、"市场力量效应阶段"三个阶段。进一步地,利用调研所得的数据对农业规模经营的市场力量效应进行实证检验。研究结果表明:1)相比于劳动力要素,土地要素和资本要素对农业规模经济的影响更为显著;2)普通农户的市场力量效应较弱,处于"规模报酬效应阶段",而规模化农户的市场力量效应较强,并且由于其规模报酬效应仍为正向,因此其处于"规模报酬效应+市场力量效应阶段"。To realize the development of agricultural modernization,it is necessary to promote the moderate scale operation of agriculture.The practice showed that the implementation of agricultural scale operation was to obtain the benefits not only from the returns to scale effect,but also from the market power effect.Applying a Cobb-Douglas function,this paper established an functional relationship between yield and price increment,developed a concept of yield elasticity coefficient of price increment,and constructed a theoretical model of agricultural scale economies with market power effect by dividing agricultural scale economies into three stages,including"returns to scale effect stage","returns to scale effect+market power effect stage",and"market power effect stage".Furthermore,this paper also tested the market power effect of agricultural scale based on a survey data.Results showed that:1)Compared with labor force,land and capital have more significant effects on agricultural scale economies;and 2)The market power effect of ordinary farms was weak,which was in the stage of"returns to scale effect",while the market power effect of large scale farms was strong because the returns to scale effect was still positive and it was in the stage of"returns to scale effect+market power effect".

关 键 词：农业规模化 规模经济 市场力量效应 规模报酬效应 黑龙江 吉林 山东 

分 类 号：F323.7[经济管理—产业经济]