中文摘要：

基于国家创新体系效率评价的两阶段模型，运用数据包络分析及其改进方法，对“金砖国家”创新体系的技术效率与单因素效率进行全面测度，并与美国等发达国家进行比较分析。研究发现，“金砖国家”研发效率远远低于发达国家水平，科技向经济的转化效率则正在赶超发达国家；两阶段的单因素效率都普遍偏低，尤其是政府研发投入效率与专利产出效率。

英文摘要：

Based on a two-stage conceptual model of innovation process, by DEA method and its improved mode, this paper evaluates the technology efficiency and the single factor efficiency of national innovation system of BRICS and makes a comparative analysis with developed countries such as America. The results show that the R＆D efficiency of BRICS is far lower than that of the developed countries, but the efficiency in the stage of technology transforming into economy is overta- king that of the developed countries. The single factor efficiency of two stages is low, especially R＆D efficiency of the government and patent efficiency of every la- bor force.