securities portfolio management meaning in English

一揽子证券管理

First of all , introduced have been the concept , causes , main content and study ' s methods about the security portfolio , the traditional security portfolio management , and markowitz model and its solutions ; discussed have been the insufficient places of markowitz model ; and indicated have been the development study directions about it
首先，介绍了证券组合的概念、原因、主要内容、研究方法、传统证券组合管理和markowitz模型及其求解方法，论述了markowitz模型的不足之处，指明了本文的拓展研究方向。