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本文运用随机前沿分析方法,对2004—2011年全国18个淡水养殖省份的技术效率进行测算,分析了淡水养殖技术效率的影响因素以及不同投入要素对淡水养殖产量的贡献。研究发现,我国淡水养殖的总体技术效率较高;淡水产品的加工率和受灾率对淡水养殖技术效率的影响较大;劳动力和资本投入对水产品产量的贡献高于扩大养殖面积的贡献。
In this paper, the stochastic frontier analysis method is used to estimate the technical efficiency of 18 freshwater aquaculture provinces nationwide from 2004 to 2011, and the influencing factors on the technical efficiency of freshwater aquaculture and the contribution of different input factors to freshwater aquaculture production are analyzed. The study found that the overall technical efficiency of freshwater aquaculture in our country is relatively high; the processing rate and disaster rate of freshwater products have a great impact on the technical efficiency of freshwater aquaculture; the contribution of labor and capital inputs to aquatic products production is higher than the contribution of expanding aquaculture area.