Recent personality studies have focused on the Five-Factor Model ofpersonality abroad.

Considering that the factor-model may relate return of a security with factors predetermined, this paper sets up the multi-factor decision-making model for behavioral portfolio choice by introducing a factor model into the existing model so that the process of behavioral portfolio choice can be simplified.

Firstly, it analyzes the feature of the stock risk and the difficulty of pricing, then it discusses the evaluation method of stock risk pricing—factor model of systematic risk, and creates stock risk pricing model basing on it and application.

The discussion about the relationship between interest rate after eigh t interest rates cut and Shanghai Index by chronological way to construct single factor model and point to gather the diagram method and linear regression metho d.

In this paper, we bring forward a new method of economic capital measurement using the single-factor model and the weighted average of band classification.

In two-factor model,the dynamic countermeasures taken by users and the congestion and troubles to some routers caused by worm rampant propagation were considered.