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运用非参数DEA方法和参数SFA方法,对我国2001—2010年30个省级行政区信息服务业技术效率进行比较分析。结果表明:DEA和SFA方法测算技术效率平均值存在显著差异,但高度相关,达到68.3%;排序方面呈现较强的一致性,达到70.6%。SFA方法则算得到的全国、东中西部地区技术效率值均呈现明显收敛趋势,DEA方法测算的技术效率值均呈现绝对β趋同。DEA和SFA技术效率值与信息服务业经济绩效均呈现显著的正向相关。同时运用两种方法进行评价,可以实现非参数方法和参数方法的优势互补,增强评价结果的可信度和稳健性。
By using the non-parametric DEA method and SFA method, the technical efficiency of information service industry in 30 provincial-level administrative regions of our country from 2001 to 2010 is comparatively analyzed. The results show that there are significant differences in the average efficiency of DEA and SFA methods, but they are highly correlated, reaching 68.3%. The ranking shows a strong consistency of 70.6%. SFA method, the technical efficiency values of the whole country, the eastern, central and western regions all showed a clear convergence trend, and the technical efficiency values measured by the DEA method all showed an absolute β convergence. There is a significant positive correlation between the technical efficiency of DEA and SFA and the economic performance of the information service industry. At the same time using two methods to evaluate, can realize the non-parametric method and parameter method complement each other, enhance the credibility and robustness of the evaluation results.