With the acceleration of science , technology and glomeration , the external environments of corporations have changed very much and the age of shortage of merchandise has finished . as the result , the " seller ' s market " has turned into " buy ' s market " 在当今全球经济一体化进程加快，科学技术迅猛发展的今天，企业面对的外部环境已发生了巨大的变化，生产力的极大提高，结束了人类社会商品短缺的历史， “卖方市场”已经转变为“买方市场” 。
