SPF理论及其在捕捞能力计算中的应用

The theory of SPF and its application to fishing capacity

摘要:

随机生产边界法是一种基于Cobb-Douglas生产函数的线性规划方法。在得到待定系数的估计值后，可求得理论产出，进而可以求得各投入单元的技术效率。以年渔获产量为产出，海洋捕捞专业劳动力和渔船数为投入，应用该方法计算浙江省1996—2004年的海洋捕捞能力。结果表明2000年浙江省捕捞技术效率最高，达到99．9％。在与DEA法进行比较后得出结论：两者计算结果相近，都能较准确的反映捕捞能力水平；在使用SPF法分析捕捞能力时，要注意技术无效率投入的剔除。此外，在用SPF法计算捕捞能力时，应将除去劳动力外的投入因子全部货币化，以提高计算的准确性。

Abstract:

It is a linear programming method based on Cobb-Douglas production function to SPF. After getting the estimated value undetermined coefficient, we can try to get the project output, and then we can get the technical efficiency of every input unit. The SPF method was applied to analyze the fishing capacity in Zhejiang in 1996 -2004. The result showed that the technical efficiency in 2000 is the maximum, approximately 99.9%. After being compared with DEA method, we got the conclusion that both methods can indicate the level of capacity clearly. And the technical inefficient cost should be eliminated when analyzing fishing capacity by SPF method. In addition, with SPF method to calculate fishing capacity, all the input factors should be capitalized excepting labor, in order to improve the accuracy of calculating.