南方农业学报2024，Vol.55Issue(7)：2192-2200,9.DOI:10.3969/j.issn.2095-1191.2024.07.030
农业技术扩散与市场集中度对我国农业全要素生产率的影响效应
Impact of agricultural technology diffusion and market concen-tration on agricultural total factor productivity in China
摘要
Abstract
[Objective]To clarify the effects and mechanisms of agricultural technology diffusion and market concen-tration on agricultural total factor productivity in China,and to explore whether there was heterogeneity in the impact of agricultural technology diffusion and market concentration on agricultural total factor productivity in different regions,so as to provide theoretical reference for the formulation of relevant policies on agricultural development in China.[Method]Agricultural total factor productivity was selected as the explained variable,agricultural technology diffusion and market concentration as the core explanatory variables,and agricultural mechanization level and labor productivity as the interme-diary variables.The two-step method of system GMM was adopted to construct the benchmark regression model,and the model was based on the panel data of 30 provinces(municipalities,autonomous regions)in China from 2014 to 2022.The panel data of Hong Kong,Macao,Taiwan and Xizang were not included in the study.The impact of agricultural technology diffusion and market concentration on agricultural total factor productivity and its mechanism were investi-gated.[Result]The study found that,with the addition of relevant control variables,the coefficients of the impact of agricultural technology diffusion and market concentration on agricultural total factor productivity were 0.076 and 0.003 respectively,and reached extremely significant(P<0.01)and significant(P<0.05)levels respectively,indicating that the impact of agricultural technology diffusion on agricultural total factor productivity was greater than that of market concen-tration.From the perspective of intermediary effect analysis,agricultural technology diffusion and market concentration could promote agricultural total factor productivity by improving the level of agricultural mechanization and labor produc-tivity.From the perspective of regional heterogeneity,the effects of agricultural technology diffusion and market concen-tration on the agricultural total factor productivity were northeast region>central and western region>eastern region.[Suggestion]Further understand the impact of agricultural technology diffusion and market concentration on agricultural total factor productivity,improve agricultural total factor productivity:(1)strengthening the agricultural technology inno-vation and promotion system,promoting rapid diffusion of agricultural technology;(2)optimizing agricultural market structure,moderately increasing market concentration;(3)implementing differentiated regional agricultural development strategies,and fully leveraging comparative advantages of different regions.关键词
农业技术扩散/市场集中度/农业全要素生产率/农业机械化/劳动生产率Key words
agricultural technology diffusion/market concentration/agricultural total factor productivity/agricul-tural mechanization/labor productivity分类
农业科技引用本文复制引用
李伟,董涵,石贝贝..农业技术扩散与市场集中度对我国农业全要素生产率的影响效应[J].南方农业学报,2024,55(7):2192-2200,9.基金项目
国家社会科学基金项目(20XJY013) （20XJY013）
河南省软科学研究计划项目(232400411158) National Social Science Foundation of China(20XJY013) （232400411158）
Henan Soft Science Research Project(232400411158) （232400411158）
