【摘要】 对中国产业环境下关于产业利润趋同和集中的两种观点进行了验证。首先对产业利润的差异性做出检验 ,结果表明产业之间的利润存在非常显著的差异 ,产业因素可以解释这种差异的绝大部分 ,同时时间因素对利润差异的影响也是显著的。在此基础上 ,对利润率变动的时间变动模式做出了检验 ,结果表明产业利润在大多数行业是不平稳的 ,不具有集中的趋势 ,而在时间上是逐年衰减的变化模式。最后对导致这种变动模式的原因做出了初步分析更多还原

【Abstract】 This paper aims to examine two hypotheses about evolutionary path of industrial profit rate in Chinas industry. First, we study the differences of industrial profit rate, which indicate significant discrepancy between industries and industrial factors could explain most of the differences, and also effects of significant time factor are reported. We use AR(1) model and regress model to test the evolutionary path and profit persistence, which report that in China most industries follow time de-trending mode and few follow stationary process. The conclusion gives the explanation of these results and suggestions about future research.更多还原