企业经济
企業經濟
기업경제
Enterprise Economy
2013年
12期
169~172
,共null页
并购 事件研究法 价值效应
併購 事件研究法 價值效應
병구 사건연구법 개치효응
M&As; event study methodology; value effect
从1998—2011年选取的8391个有效样本中,分别比较交易前卖方前三年平均利润率和卖方当年利润率,结果发现,交易前卖方前三年平均利润率为0.2762%,交易后卖方当年利润率为1.5538%,总体来看,并购重组的卖方公司的整体效益有轻微改善。但进一步的计量研究表明,一旦卖方交易前三年利润高于13.1157%,卖方交易后利润率将变为负数,如果卖方交易前三年平均利润率为24.1801%,交易后利润率则下降到-1.3398%,下降幅度超过25%。与此同时。在选取了1998—2011年10664个买方有效样本后,发现买方公司交易前三年平均利润率为24.1801%,交易后当年利润率下降到4.9674%,下降幅度高达19.2127%。这说明,无论是卖方还是买方,在交易前三年如果利润较高的话。交易后当年利润率都呈快速下降趋势。
從1998—2011年選取的8391箇有效樣本中,分彆比較交易前賣方前三年平均利潤率和賣方噹年利潤率,結果髮現,交易前賣方前三年平均利潤率為0.2762%,交易後賣方噹年利潤率為1.5538%,總體來看,併購重組的賣方公司的整體效益有輕微改善。但進一步的計量研究錶明,一旦賣方交易前三年利潤高于13.1157%,賣方交易後利潤率將變為負數,如果賣方交易前三年平均利潤率為24.1801%,交易後利潤率則下降到-1.3398%,下降幅度超過25%。與此同時。在選取瞭1998—2011年10664箇買方有效樣本後,髮現買方公司交易前三年平均利潤率為24.1801%,交易後噹年利潤率下降到4.9674%,下降幅度高達19.2127%。這說明,無論是賣方還是買方,在交易前三年如果利潤較高的話。交易後噹年利潤率都呈快速下降趨勢。
종1998—2011년선취적8391개유효양본중,분별비교교역전매방전삼년평균리윤솔화매방당년리윤솔,결과발현,교역전매방전삼년평균리윤솔위0.2762%,교역후매방당년리윤솔위1.5538%,총체래간,병구중조적매방공사적정체효익유경미개선。단진일보적계량연구표명,일단매방교역전삼년리윤고우13.1157%,매방교역후리윤솔장변위부수,여과매방교역전삼년평균리윤솔위24.1801%,교역후리윤솔칙하강도-1.3398%,하강폭도초과25%。여차동시。재선취료1998—2011년10664개매방유효양본후,발현매방공사교역전삼년평균리윤솔위24.1801%,교역후당년리윤솔하강도4.9674%,하강폭도고체19.2127%。저설명,무론시매방환시매방,재교역전삼년여과리윤교고적화。교역후당년리윤솔도정쾌속하강추세。
After studying the 8391 valid samples of M&As in the years of 1998 -2011, we found that in the very year after transaction the seller' s annual average rate of profit reached 1. 5538%, and the three-year annual average rate of profit before transaction was O. 2762%, so that the sellers slightly improved their own profitability after transaction as a whole. But further studios had shown that, once the three-year annual average rate of profit before transaction reached higher than 13. 1157%, the seUer' s annual average rate of profit in the very year after transaction would be negative, and once the three-year annual average rate of profit before transaction reached 24. 1801%, the seller' s annual average rate of profit in the very year after transaction would be decreased to-1. 3398%, reducing more than 25%. At the same time, after studying thc10664 valid samples of M& As in the years of 1998 -2011, we found that, the buyer' s three-year amlual average rate of profit before transaction was 24. 1801%, and the buyer' s annual average rate of profit in the very year after transaction only reached 4. 9674%, reducing up to 19. 2127%. This showed that for either the seller or the buyer, if annual average rate of profit before transaction was at a high level, annual average rate of profit in the very year after transaction would be in a rapid decline trend.