This thesis is attempted to establish the model of development factors for large and middle sized companies with the application of company development theory.

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.

The discussion of new venture growth model and its establishment;

First,the aerospace high-tech enterprise s growth model is constructed to analyze the influence of the control parameter and life parameter on the enterprise,which explains the connotation of the aerospace high-tech enterprise growth model.

In this paper, the structure model of student cadre in Tsinghua University is analyzed in the new situation, and the common growth model of student cadre is given.

On the basis of the above understanding, a genetic model has been established.

In some respects, such as relations between deposit and tectonic setting, mineralization physical chemical condition and structure, and genetic model and so on, many questions are waiting.