我国沿海地区水产技术推广效率时空演变研究——基于面板三阶段DEA模型的分析

Temporal and Spatial Evolution of Fishery Technology Popularization Efficiencyin Coastal Areas of China

摘要:

本文基于2006-2016年我国沿海地区水产技术推广的面板数据,运用三阶段DEA模型对沿海11省市剔除环境因素和随机误差项前后的水产技术推广效率进行测度与分析。分析结果表明,沿海地区水产技术推广效率受环境因素影响较大,水产技术推广网站数量、渔民手机数量、渔民人均纯收入和养殖受灾面积对水产技术推广机构、推广人员、推广经费和推广资料影响显著；在剔除环境因素和随机误差项后,大部分地区水产技术推广综合技术效率和规模效率呈现下降,各地普遍处于规模报酬递增状态,规模扩张是技术推广效率提升的关键；2006-2016年,沿海各地区水产技术推广效率变化显著,沿海“渔业大省”水产技术推广效率水平明显优于其他省市。各地区应结合渔业发展现实,挖掘资源优势,加大技术推广投入力度,提高各地区水产技术推广效率。

Abstract:

The panel data of 2006-2016 in the coastal area of China fisheries technology popularization based on DEA model, using three-stages DEA of measurement and analysis of the 11 coastal provinces excluding environmental factors and random errors before and after the fisheries technology popularization efficiency. The analysis results show that the influence to promote the efficiency of coastal aquaculture technology by environmental factors, the number of fisheries technology promotion website, mobile phone number of fishermen per capita net income and the affected area of farming significant institutions, promotion of fishery technical popularization promotion funds and promotional materials, excluding the impact of personnel; environmental factors and random error, most fisheries technology extend the area of comprehensive technical efficiency and scale efficiency decreased, widespread in the state of increasing returns to scale, the scale of expansion is the key to improve the efficiency of technology extension; 2006-2016, along the sea regions to promote the efficiency of fisheries technology changed significantly, coastal fisheries, fisheries technology popularization efficiency level is obviously better than that of other provinces and cities. Each region should combine the reality of fishery development, tap the advantages of resources, increase the investment in technical popularization, and improve the efficiency of fishery technology popularization in different areas.