加以变化 meaning in Chinese

vary

Using 865 panel data of 173 manufacture firms in china during 1997 - 2001 , the paper finds that a certain degree of ownership concentration is favorable to the corporate governance and performance , and the influence of the largest stockholders ’ behaviors on enterprise performance is based on ( 1 ) the proportion of equities that they hold , ( 2 ) the nature of controlling ownership
本文建立的模型是以标准coll - douglas生产函数为基础，并将静态的生产函数加以变化使其能反应企业产出的持续变化，即企业价值长期的增长。本文的研究发现，一定程度的股权集中对公司的治理和业绩都是有好处的。