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本文将SBM模型与四阶段DEA方法相结合,利用修正的四阶段DEA法,考虑松弛量对效率测度的影响,同时控制外部环境的影响,实证评估了2000～2006年14个OECD国家和中国的产险业经营效率。结果发现,各国环境外生变量,包括人均GDP、社会保障水平、金融深化程度、公司规模,对各国产险业的投入松弛程度有显著影响。在对环境因素进行调整后,各国产险业SBM效率上升明显,但在样本期间内没有呈现明显的逐年升高或者逐年下降的效率趋势。
This paper combines the SBM model with the four-stage DEA method, and uses the modified four-stage DEA method to consider the effect of slack on the efficiency measure and control the influence of the external environment. The empirical evaluation of the 14 OECD countries and China from 2000 to 2006 Property Insurance Business Efficiency. The results show that environmental exogenous variables in various countries, including per capita GDP, social security level, the degree of financial deepening, the size of the company have a significant impact on the degree of slack in the investment in the insurance industry in various countries. After adjusting for environmental factors, the efficiency of SBMs in domestic insurance industry increased significantly, but there was no obvious trend of increasing year by year or declining year by year during the sample period.