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中国经济改革已有10年,然而关于重点行业的生产率变化及行业内企业之间生产率差异的程度和原因的研究,却相当少见。对生产率的定量研究不足,很大程度上是因为缺乏50年代、60年代和70年代详细的数据。而已有的数据也存在某些缺陷,如固定资产中末扣除物价上涨因素,末能区分开生产性和非生产性投入等,这也增加了生产率研究的难度。 本文的目标之一是分析引起120个钢铁企业多因素生产率显著差异的原因。由于数据统计口径以及影响中国钢铁企业效率变动的经济条件对中国其它主要行业有相类似之
China’s economic reform has been 10 years. However, studies on the extent and causes of productivity differences in key industries and productivity differences among enterprises in the industry are quite rare. Quantitative research on productivity is insufficient, in large part because of the lack of detailed data in the 1950s, 1960s and 1970s. The existing data also have some shortcomings. For instance, the deduction of rising prices from the fixed assets can at the end distinguish between productive and non-productive inputs, which further increases the difficulty of the productivity study. One of the goals of this paper is to analyze why there are significant differences in multivariate productivity among the 120 steel companies. Due to the statistical size of the statistics and the economic conditions that affect the efficiency of China’s iron and steel enterprises, they are similar to other major industries in China