In the decision models , solving the following problems of appraisal on agricultural project investment : compare with the traditional ahp that the f - ahp based on entropy weight can apply to fuzzy decision making of agricultural projects . model ' s scale is more accurate . using a - cut and index of optimism estimate the uncertainty and preference of decision makers 在决策模型方面，进一步深入研究了农业项目投资评估的以下问题；与传统的ahp相比较，基于嫡权的模糊层次分析法可用于农业项目模糊决策，标度更加准确，通过改变截集可以考虑不确定性，通过改变乐观指数可以考虑决策者的风险偏好。
Through introducing the theory of security portfolio and assets portfolio , this article points out that on the basis of decreasing the risk love , under the precondition of without increase of risks , life insurance companies can effectively rise their earning ability and avoid occurrence of solvency risk by expanding investment channel and investment diversification 本文通过引入证券投资组合及资产投资组合理论，指出在降低保险人风险偏好程度的基础上，适当地拓宽投资渠道，进行分散投资可以在不增加风险的前提下，有效地提高寿险投资的收益水平，从而避免偿付危机的产生，使寿险公司真正发挥出其应有的作用。
Section 1 studies the standard of efficiency of eso , and we bring forward the standards of efficiency of eso from the angle of economics and management respectively . section 2 searches the sources of efficiency of eso , including stimulant effect , detainment effect , filtering effect , venture - preference - enhancement effect and cost effect 股票期权制对企业目标的影响分为五个方面，它们分别是股票期权制的激励效应、筛选效应、风险偏好增强效应、留人效应和制度成本效应，五方面效应综合作用的结果共同决定了股票期权制的效率。
Then the process of making optimal bidding strategy is introduced by using an example . in another bidding experiment , we find out experimenters " risk preferences through psycho test , and then we compare these data with bidding data gathered in the experiment . we find the risk preference and the price adjustment have some relation and it ' s worth studying further 随后的部分介绍了考虑报价人风险偏好问题的最优策略制定过程，在另一个竞价实验研究中，引入了行为经济学的研究方法，通过心理学测试结果以及实际报价数据之间的比较观察，发现决策人风险度偏好曲线和决策人报价调整量之间有着相同的变化规律，这一发现为研究决策人风险偏好问题开辟了新的思路。
The game result is mainly determined by following factors , including the advantages of shareholders , their attitudes to risks and ability to bear risks , the concentration of internal shareholding structure , the restraint of property right , the external formal and informal institutional arrangements and the distribution conditions of enterprise financial governance 其中不同的利益相关者拥有的优势、利益相关者的风险偏好及承担风险的能力、企业内部股权结构的集中程度及产权约束程度、企业外部正式与非正式制度安排和企业财务治理中财权配置状况是决定企业财务利益取向这一博弈结果的主要因素。
On along using two assumptions in portfolio theory : market efficient and investors are risk - aversion , this thesis constructs a multi - cycle portfolio model and works out the investor ' s investment strategy , with the analysis of investor ' s risk preference and the function of investor ' s risk - aversion and making use of dynamic programming optimization method 在沿用了标准资产组合理论市场有效率和投资者风险厌恶型条件与假设的基础上，构造了一个多周期的资产组合模型，通过对投资者的风险偏好的分析，结合投资者的风险厌恶函数，利用动态规划的优化方法得出了投资者的最优选择策略。
Facing the anomalies in financial markets that the modern classical financial theory cannot fully explain and using the research achievements in psychology , behavior science , and sociology , behavioral finance argues that individual investors have different decision - making preferences faced with uncertainties because of their different cognitive ways and evaluation mechanism 面对金融市场的异常现象，行为金融学引入心理学、行为学和社会学的研究成果与范式，指出投资者在面对不确定性进行决策时，由于个体认知方式与价值判断的不同，往往表现出不同的风险偏好而偏离经典金融理论的前提假设。
( 3 ) we solve the model of portfolio by using evolutionary programming under the condition of the covariance matrix which is a non - positive matrix , design the methods which can solve markowitz ' s model and multifactor portfolio model . and we improve on markowitz ' s model , establish the optimal model under the conditions that the investor is risk - avoid or risk - like 此外，本文对均值?方差模型进行了改进，得出了投资者为风险偏好或风险厌恶时的资产组合模型，设计了相应的进化规划算法，给出了算例，并比较了各模型的差异，分析了改进模型的意义。
Based on the summary of previous evaluation methods , this paper points out the shortcomings of them , then draw the theory of artificial neural network into risk evaluation , through an example of some kind of investment project and the training and examination of a group investigation sample , it sets up the artificial neural network model . at last , this model is applied to the real case of an engineering project to evaluate its risk level and satisfactory result is made ; in the fifth chapter of this paper , the main risk factors that affect the economic appraisal of the engineering investment project are described through the form of relationship chart . then it is proved by way of deduction of formula that the risky influence that is brought by inflation must be considered in the engineering investment project 本文在对以往评价方法进行归纳总结的基础上，指出其中存在的不足之处，将人工神经网络理论引入到风险评价中，以某一类投资项目为例，通过对一组调查样本的训练和检测，建立了工程投资项目风险评价的人工神经网络模型，并通过实例对模型进行了验证，取得了满意结果；在本文第五部分，对影响工程投资项目经济评价的主要风险因素以关系图的形式进行了描述，然后通过公式推导证明了在工程投资项目中应该考虑通货膨胀带来的风险影响，接着在分析以往建立的经济评价净现金流量表达式存在不足的基础上提出了另外一种方式的表达式，即净现值解析模型，对该模型的求解进行了详细的说明，并分析了如何恰当的选择各风险变量的概率分布，最后在考虑投资者风险偏好的前提下，提出了工程投资项目新的风险度量模型。
With detailed analysis of the financing means and finance demand of internet company , while learning from the research angle and method of exiting corporate capitai structure theory , the capital structure theory for internet company is studied from the foilowing angies " financing capital cost , market competition structure , information economics and trade - off theory as weli 首先分析社会投资主体的风险偏好和网络公司的投资风险与收益特征；论述网络公司股权融资和债权融资，金融需求和融资障碍。重点借鉴现有公司融资结构理论研究方法，从融资资本成本、市场竞争结构、信息经济学以及权衡理论等角度，勾勒出专门针对网络公司m /摘要+的融资结构理论框架。
