罗非鱼养殖户成本效率及其影响因素分析——基于广东省茂名市养殖户的调查数据  

Cost efficiency of tilapia aquaculture and its influencing factors:Based on the investigation data of Tilapia farmers in Maoming, Guangdong province

作　　者：丁志超[1] 徐翔[1] DING Zhichao XU Xiang(College of Economic and Management, Nanjing Agricultural University, Nanjing 210095, China)

机构地区：[1]南京农业大学经济管理学院,江苏南京210095

出　　处：《湖南农业大学学报（社会科学版）》2016年第6期28-34,共7页Journal of Hunan Agricultural University(Social Sciences)

基　　金：国家自然科学基金项目(71273135)

摘　　要：基于对广东省茂名市201份罗非鱼养殖户的调查数据,运用数据包络分析(DEA)方法对农户罗非鱼养殖的成本效率进行评估,并从养殖户人力资本和生产特征方面选取16个变量,使用Tobit分析方法对罗非鱼养殖成本效率的影响因素进行分析。结果表明:罗非鱼养殖户成本效率普遍低下,主要原因是要素投入远未达到要素配比的最佳水平;人力资本水平可以通过改进技术效率帮助养殖户实现成本效率;成本效率与规模呈倒"U"型关系;不同生产技术对成本效率的影响具有明显差异;罗非鱼产业链在提升养殖成本效率方面没有发挥积极作用。Based on the research on 201 farmers of tilapia aquaculture in Maoming, Guangdong province, we used data envelopment analysis （DEA） methods to analyze the status of cost efficiency of tilapia aquaculture. We also selected 16 variables from human capital and production characteristics to analyze the influencing factors of the cost efficiency of Tilapia with Tobit analysis method. The results show that cost efficiency of Guangdong tilapia farmers is low, which mainly causes by less optimal ratio level of the input. We also find that the level of human capital can help farmers to improve the cost efficiency through increasing technical efficiency. At the meantime, there is an inverted＂U＂ relationship between cost efficiency and production scale. Another result we find is that different production technology has different effect on cost efficiency and the chain of industry does not play a positive role in improving the efficiency of breeding cost.

关 键 词：罗非鱼 养殖户 成本效率 人力资本 影响因素 

分 类 号：F326.4[经济管理—产业经济] F224.5