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关于企业科技进步贡献率测算方法中一些问题的探讨李群仁（铁道部科学研究院运输及经济研究所，北京１０００８１）日前，路内一些学术单位研究了如何计算铁路系统科技进步对运输生产发展的贡献率的问题，研究中沿用了国外常用的一些生产函数和数学模型，如柯帕─道格拉斯...
Discussion on Some Problems in the Measurement of the Contribution Rate of Science and Technology Progress in Enterprises Li Qunren (Institute of Transportation and Economics, Research Institute of the Ministry of Railways, Beijing 100081) Recently, some academic units in the road studied how to calculate the contribution of scientific and technological progress of the railway system to the development of transport production. In terms of the rate, some production functions and mathematical models commonly used in foreign countries are used in the research, such as Copa-Douglas...