It is limited in the financial channel of m & a in china , listed companies mainly borrow money from the stock market , it has not gotten the leverage benefit , and it neglects the financing cost , thus weakening the efficiency of m & a 目前我国企业并购融资渠道单一、未充分利用多种金融工具，上市公司并购以股权融资为主，未能有效利用债务融资带来的杠杆收益，弱化了融资结构，影响了并购融资效率。
Experiments show that , when the grid has fewer available resources or the performance discrepancy of the resources is much higher , the full priority scheduling algorithm ensures the workflow applications that have high priority to be scheduled firstly , and when the grid contains more resources that have the same performance , the non - absolute priority scheduling algorithm avoids largely increasing of the workflow ' s makespan caused by resources waste 实验表明，当网格中的资源较少且资源的性能差异较大时，使用完全优先级调度算法可以保证优先级较高的工作流的应用程序优先使用优势资源；当网格中的资源性能差异不大时，非完全优先级调度算法可解决因资源未充分利用而造成工作流完成时间大幅增加的问题。
The statistical methods include correlation analysis , regression analysis , etc . it draws the following conclusions : ( a ) the concentration of security brokerage is increased steadily if the trading commission floats , ( b ) the scale effect of security departments is obvious , ( c ) synthetic security companies did not gain the competitive advantage 竞争状态研究发现: ( 1 )浮动佣金制下经纪业务集中度稳步增加。 ( 2 )证券公司营业部规模效应明显。 ( 3 )综合类证券公司并未充分利用浮动佣金制度获得显著优势，还需在资源整合、业务优势互补等方面加大力度。
