Improvement of Markowitz s investment portfolio model and its application;

Risk - Premium Analysis on Optimal Investment Portfolio;

Investment Portfolio Insurance Strategy of Principal Guaranteed Fund;

Optimization of portfolio of petroleum exploration projects;

The Portfolio Optimization Model of Exploration Objects and it's Application;

Research on improved model of stocks portfolio optimization based on hybrid genetic algorithm;

Optimal model on investment combination of venture capital firm;

Analysis on the investment combination risk of social security fund based on VaR model

are analysed and appraised by theoretical modle on investment combination of enterprise stratagy programme,adjusting tactics on production combination of compang is put forward.

Application of development programming model in combination investment;

The analytic construction of optimal solution for a parameter－ programming problem was obtained, and was applied to the combination investment to the risk assets which arise in economics.

In this paper the return and risk of Item combination investment are analyzed.

The Effective Border of Portfolio Investment under E-Sh Risk;

On the basis of portfolio investment theory and given the portfolio investment model with normal distribution return rate,a new real estate portfolio investment model with nonormal distribution return rate was presented.