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中文摘要：
从企业之间活动的相互依赖性角度出发，分析了集群规模的动态演化特征。研究认为，随着企业之间活动相互依赖程度的降低，集群规模呈现扩大趋势，集群规模的“震荡”程度呈现减弱趋势，甚至不发生明显的震荡现象。对于活动之间相互依赖程度较高的集群，集群企业的生存率较低，新进入者对于集群企业活动绩效的提高有重要的推动作用；而相互依赖程度较低的集群，进入壁垒较低，集群企业的生存率相对较高。
英文摘要：
The paper analyzes the characteristics of evolution of cluster＇s size form the view of interdependencies between firms ＇ actions. The results indicate that with the decrease of independencies between firms＇ actions, the size of cluster presents the expanding trend and the shakeouts in the number of firms are less remarkable, even no shakeout. In addition, the survival rates of firms are lower and new entrants take an import action on the improvement of cluster＇s efficiency when independen- cies between firms＇ actions are higher, but when they are lower, the survival rates of firms are higher and the entry barriers are lower.
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