In the light of the situation that long-term cooperation fails due to non-investing party s subjective discount factor being small,this paper designed a model of multi-phase investment and limited period cooperation by utilizing the game theory.

The optimal time of staged financing is the most difficult problem for venture capitalists in venture capital.

The paper analyzes the “bilateral commitment” dilemma between venture capitalist and entrepreneur, which arises from the transformation of specific human capital to exclusive human capital of entrepreneur, and explains the mechanism for staged financing to solve this dilemma.

Staged financing is a basic operational form of venture capital,so it is of important senses for research decision problem of staged financing.

This paper sets up a dynamic programming model of the multi-period assets investment,with maximizing the final total return under the upper bound of the riskFrom the model,we can attain the real combination in each period of the optimal multi-period investmen

A multi stage investment decision model of planning fleet for deep sea fishing vessels is established on the basis of dynamic programming in view of system theory.

The paper proposes a mean dynamic downside semi-variance multiperiod portfolio selection model with the transaction costs and the constraints on trade volumes,and uses a special algorithm-the discrete approximate iteration method to solve it.