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运用方向性距离函数方法测度中国银行业2000～2006年包含不良贷款的技术效率及规模效率得出,在平均意义上,考虑不良贷款后,国有和股份制银行在生产前沿上的数目增多,中国银行业的效率水平提高并且效率值变化近似于V字型;在最大化减少不良贷款和投入同时增加好产出时得到的效率值较高;中国银行业处于规模报酬递减区域,但从长远看,规模效率有上升的趋势。
Using the method of directional distance function to measure the technical efficiency and economies of scale of non-performing loans from 2000 to 2006 in China’s banking industry, in the average sense, after considering the non-performing loans, the number of state-owned and joint-stock banks increased in production frontier. Bank of China The efficiency of the industry is improved and the change of efficiency value is similar to the V shape; the efficiency value obtained when maximizing the reduction of non-performing loans and inputs while increasing the output is higher; and the banking industry in China is in a region of diminishing returns to scale, but in the long run, Scale efficiency is on the rise.