Until now there exists no universally accepted security pricing model that can exactly describe the beha - (viors) of real stock prices.

目前金融界尚未有一个公认的能够准确解释真实股价行为的证券定价模型。

RESULTS & CONCLUSION:Drug retailing was considerably influenced by policy factor, this issue of "Regula_tion" may change some unfair business beha.

方法通过研究《办法》的出台背景和药品零售业的现状，分析该《办法》对药品零售业可能产生的影响。