CAJ | 학술논문

筛选沪深两市采掘业上市公司中在2008年发生并购的公司作为样本,对比全行业和未发生并购企业数据,采用数据包络分析方法（DEA）对长期并购绩效进行分析。研究结果显示,并购活动在短期内会对企业造成绩效冲击,但长期来看,并购有利于公司绩效的提升。
사선호심량시채굴업상시공사중재2008년발생병구적공사작위양본,대비전행업화미발생병구기업수거,채용수거포락분석방법（DEA）대장기병구적효진행분석。연구결과현시,병구활동재단기내회대기업조성적효충격,단장기래간,병구유리우공사적효적제승。
The research objects are the companies of extractive industries listed companies which happened M＆A in 2008.Compared to data of the entire industry and the companies without M＆A, using the method of data envelopment analysis （DEA）,we analyze the performance of M＆A in long term. The results shows, M＆A activity in the short term will reduce the enterprise performance, but in the long term, it will be helpful to enhance corporate performance.