本文在分析相关文献的基础上，详细论述了企业兼并理论的研究现状，并提出了若干研究前沿。
This paper, based on the analysis of relative literatures, summarizes the study actuality of the merger theory, and puts forward some study directions.
产业集群前沿研究文献的综述。
随机前沿分析是目前计量经济学中一种效率评估的新技术，文献显示，在我国农村乡镇卫生院的服务效率评价中尚未被应用。
The result indicates that SFA can evaluate efficiency of sample town hospitals well and it also indicates there are high levels of inefficiency.
展现了文献计量学研究的热点领域，其中以科学引文和研究产出等为代表；呈现了文献计量学的发展趋势：①网络和网络计量的研究日益成为文献计量学的研究前沿；
The authors got the reference cocitation map to identify the dominant research fields and representative scientists and hot topics in which the science citation and research outputs are classical.
展现了文献计量学研究的热点领域，其中以科学引文和研究产出等为代表；呈现了文献计量学的发展趋势：①网络和网络计量的研究日益成为文献计量学的研究前沿；
The authors got the reference cocitation map to identify the dominant research fields and representative scientists and hot topics in which the science citation and research outputs are classical.
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