DEA理论及其在我国海洋渔业中的应用

阐述了DEA法理论，并将其应用于我国的海洋渔业，分析表明，在我国远洋渔业中，目前存在的主要问题是：船数多但船体不够大，这是提高洋船队捕捞能力的主要，也是远洋渔业效率不高的根本原因，其次，我国远洋捕捞船队的“能力利用度”呈现两极分化的特征，1999年以辽宁，江苏，福建，山东和广东为最高，其余各相关省市都有可能在不增加投入的前提下，通过效率的提高而增加捕捞产量。在帆张网作业中的DEA分析得出结果：一个投入因子若普遍被高估（或低估）相同的比例，应不会影响捕捞能力。因此得出结论：运用DEA法可以对不变投入，可变投入与最终的产出进行综合分析，以确定在多重投入情形下的最大产量；DEA法既能处理大量的数据，也能解决较少数据的情况，其在海洋渔业方面应用的结果是令人满意的。

The theory of DEA and its application to Chinese marine fisheries

The theories of DEA were introduced and the method was applied to the marine fisheries in China. Firstly, the result showed that the ship sizes were too small which affected the increase of the fishing capacity and the capacity utilization, though there were enough ships in the Chinese distant water fisheries. Secondly, the capacity utilization of the relative provinces is in two extremes. Among these provinces, the rates of Liaoning, Jiangsu, Shandong and Guangdong are the highest and the others may increase their catch much by only raising their production efficiency with no more investment. The analyses of the stow nets' fishing in Zhoushan showed that the fishing capacity will not change when an input factor changes at the same rate in different units. So the DEA method can make comprehensive analyses of the variable investing, the fixed investing and the catch in fishing to determine the maximum output in multi investments. This method is also able to deal with not only a lot but also a little of data, and the results of its application to marine fishing are satisfactory.