Model of Real Estate Portfolio Investment Based on the Least Risk

The high-speed development demands new real estate investment theory. Using the experiences of the Western developed countries for reference in property investment and modern portfolio investment theory, the paper introduces the conception of systematic and unsystematic risk with the centre of risk and profit. Consequently, the model of real estate base on least risk and anticipated profit is studied in the discussion of its concerned hypothesis and determining the concerned parameters. With living example analysis, we reach the conclusion that portfolio investment risk is smaller than single investment if the investor adjusts the tactics of portfolio investment.     

An Application of Hamilton-Jacobi-Bellman Equation in Optimal Investment

The simple portfolio investment model is given, with the HJB equation. The optimal portfolio investment problem is discussed under some given supposition, the quantitative relations are gotten between the investment strategies and riskless investment income rate and risk investment income rate are gotten. And with the quantitative relations, we study the qualitative relations between the investment strategies and riskless investment income rate and risk investment income rate. This also accounts for the effect of the falling interest rate of RMB on the national economy.     

Research on a Risk Investment Portfolio with Stochastic Character

With the theory of stochastic differential equation, the authors discuss a problem of a class of risk investment portfolio with stochastic character. With the selection of appropriate utility function and combines the Hamilton-Jacobi-Bellman equation, under the assumption that an optimal portfolio exists, and by using the Homologous Lagrangian function, some quantitative results of this risk optimal investment portfolio are given. With these quantitative results, some qualitative results are got. These results concord with the results of the theory of risk investment.     

A Caculation Method of Portfolio Investment under the Risk Mininiz

According to the security investment theory of Markowitz,this paper presents aCaculation method of portfolio investment under the risk minimization,and some mathematic expres-sions of the efficient frontier for portfolio investment are conducted.Based on these,the efficientfrontier is proved as a parabola,and a practical caculation process is given.     

Analysis on Strategies to Construct Portfolio Insurance

The strategies of portfolio insurance are introduced according to its principles and design thinking.The(authors) give the simple mathematical models and practical processes of option-based portfolio insurance(OBPI),constant mix(CM),constant proportion portfolio insurance(CPPI),and time-invariant portfolio protection(TIPP),and use risky assets containing 180 index's stocks of Shang-hai Stock Exchange and risky-free assets containing bonds to form portfolio to do empirical simulating.Based on the results,they analyze the above strategies comparatively,gives the(related) investment suggestion,and shows how to avoid risk without restriction on profit.     

Two Optimization Methods for Portfolio Investment Decision

On the basis of introducing some fundamental theories and computational methods of portfolio investment, this paper derives a decision model for searching optimal portfolio with the utility function. Then,after comparing the new model with the conditional extreme optimization model,which has been usually considered by people,the result shows the new model would be more efficient under certain conditions.     

Liquidity Risk Management of the Open-end Securities Investment Fund

The main object of this paper is to research the liquidity risk management of the open-end securities investment fund in line with the real position of China's securities market and investment regulation of the open-end securities investment fund.So the paper concentrates on discussing the redemption forecasting methods,stock liquidity assessment system,portfolio selection in line with the redemption forecast,and financing from the other institution,which are the main parts of liquidity risk management of the open-end securities investment fund.     

Analysis of Portfolio -Effect in Tax Planning

The quantities of taxes, as an important and difficult factor of finance, influences directly profits that corporations really got. Tax planning in enterprises could be regard as one portfolio investment of securities. Being concerned of cost and risk, portfolio theory is used as a new way in study of tax planning to evaluate validity of planning program and make optimal choice to achieve the portfolio-effect which is more planning profits and less planning risks.     

Application of Cluster Analysis in Stock Investment

The primary methods of stock investment analysis are fundamental analysis ,technic analsis and portfolio investment analysis.Based on analyzing the applicability and limitation of these methods, the paper is applying the cluster analysis in the stock investment, and pointing out it is a feasible and effective way to give advices to stock investment. Cluster analysis firstly looks into the industry factor, company factor, profitability and pullulation of each stock, so people can discover the investment value through stock'immanent value which is decided by their fundamental characters.To gather the similar stocks,a synthetic evaluation index system is erected to measure the similarity of stock all-roundly and objectively. Cluster analysis can help investors hold the whole character of stocks, make certain of investing scale and suppose the possible variation of stock price.So it will be easier for investors to choose investing occasion.     

Existence of an Arbitrage about Portfolio in an Unequilibrium Market

This article has discussed the problem of an arbitrage about an portfolio in an unequilimarket and got a determinable theorem about existence of an arbitrage about an portfolio. According to this theorem,an arbitrage about portfolio is not existing if there exists a respect martignal measure.A structural result about existence of arbitrage about an portfolio in a market is gotten. All results represent the existence of an arbitrage about an portfolio is related closely to the type of market.     

Optimal Model of Portfolio under Safety-First Criteria and Portfolio Performance Management

We point out the shortage of optimal portfolio model which was suggested by Markowitz in 1952, this theory has been less useful in practice because one must know indifference curves of investors. We propose safety first criteria and get optimal portfolio model under this criteria. Two methods are given to do with probability condition, and we obtain optimal portfolio. At last, we give safety first index to portfolio performance management.     

Combinatorial Chemistry as an Efficient Technique for New Drug Innovation

The origination and status of the combinatorial chemistry are introduced and described and various approaches for building its libraries are mentioned and classified . Besides, the identification and characterization of the active compounds are recommended and the solid phase combinatorial synthesis and liquid phase combinatorial synthesis are presented. Meanwhile, some analytical methods including infrared spectroscopy, nuclear magnetic resonance spectroscopy, mass spectrometry and so on are applied into combinatorial chemistry. Some powerful chemometric methods and techniques are then discussed for their applying into combinatorial chemistry. From the view of green chemistry, combinatorial chemical techniques could be regarded as "green" methods to fully utilize the resource and materials. When rational drug design is integrated into it, combinatorial chemistry can more efficiently and perfectly be used for innovation of the new drugs. Finally, the combinatorial chemistry is prospected for the application and development in future.     

Government Procurement Combinatorial Auction Mechanism

Procurement for various items in enterprises is often implemented by combinatorial auctions, which is also called procurement combinatorial auctions. The authors propose MA-VCG, an efficient multi-attributes procurement combinatorial auction, in which agents will bid for combinational supply of items with truthful report. Besides incentive compatible, MA-VCG also holds the budget balance and individual rationality. Especially, the important characteristic of MA-VCG is that the mechanism focuses on the system gross utility as the optimization goal. The goal is and unique in procurement combinatorial auctions.     

VaR Model and Application to Securities Investment Management

VaR model is one of methods to measure and control market risk.This paper analyzes VaR model principle and its main factors.According to function relation,the relationship between the portfolio value and its market risk factors are sorted in two kinds: linear and nonlinear.The method of calculating the VaR is put forward.Finally,the article analyzes the application of VaR model to portfolio,risk control,information disclosure and financial supervison.     

Algorithm Based on SVM and Rules for the Disambiguation of Combinatorial Ambiguous Phrases

Ambiguity processing is an essential but difficult problem in word segmentation.The authors combine Support Vector Machines(SVM)with rules to propose a new algorithm(SR algorithm)to deal with the combinatorial ambiguous phrases in Chinese word segmentation.The key idea of the SR algorithm is to solve combinatorial ambiguous phrases making use of the theory of SVM and rules of parts of speech.In a test of several kinds of Chinese corpus,it indicates that the accuracy of segmentation for combinatorial ambiguous phrases reach 83%.It provides a new method for solving Chinese word segmentation problems.     

组合预测模型在东北地区粮食产量预测中的应用

采用最优加权方法,建立了基于灰色预测模型、灰色马尔科夫预测模型及逻辑斯蒂预测模型的组合模型;并根据东北地区1949-2008年粮食产量资料,利用组合模型预测了该地区未来10年的粮食产量.结果得到,灰色预测、马尔科夫预测、逻辑斯蒂预测和组合预测方法的预测粮食产量的平均相对百分误差分别为:12.74%,3.02%,13.29%,2.87%,结果证明组合预测模型可以较好地提高粮食产量的预测精度.通过组合模型预测结果表明,到2015年东北地区的粮食产量可以达到1.25亿t,可以完成该地区增产150亿kg粮食的任务,到2018年,粮食产量预计可达1.38亿t,东北地区增粮潜力巨大.     

Study on Application of Value - at - Risk to the Risk Evaluation of Construction Project Bidding

The value-at-risk(VaR) model is a statistical model to estimate and control financial risk,and used to measure the most probable loss on the next deal stage of financial asset portfolio.Based on the principle of the value-at-risk,in this paper the value-at-risk is to be applied to the risk evaluation of construction project.Assuming the sub-project prices abide by the BQ model are random variable which conform to normal distribution,this paper has built up the portfolio of project according to biding and quoted price of construction project,and adopted the variance-covariance method to measure the value-at-risk of the biding and quoted price in order to provide a feasible risk analysis tool for the evaluation of construction project bidding.     

An Optimal Combinatorial Forecast Method in for Future Profit of Assets

This paper presents an optimal combinatorial forecast method for the future profit of assets.     

Optimizing Countermeasures and Analysis on Grey Relationship about the Structure of Industrial Investment of Chongqing

With the increasing contradiction of structure of industrial investment in Chongqing,this article has analyzed the relationship between its industrial investment and economic growth by the theory of grey system,discovering the mismatch between industrial structure and investment structure,the existing phenomenon of "off-manufacture" and the irrational investment structure in the three industry respectively.Then in order to develop the industry of Chongqing positively,it points out some countermeasures such as optimizing the investment between primary and secondary and tertiary industry and the investment in the above industry,strengthening investment in manufacture in Chongqing to avoid hollow of industry.     

中国农业科研机构基础条件投资与效果评价

为加大农业科研投入、优化投入结构提供理论与实证基础。运用了统计、计量和专家打分等方法对基础条件投资的规模及变化趋势、投资效果等进行分析,发现中国农业科研机构的基础条件投资规模与强度都存在较强的不稳定性,现有条件水平主要得益于“十一五”期间的超常规发展,增加科研基础条件投资对提高科研机构产出能力作用显著等,建议进一步加强基础条件投资,并逐步建立持续稳定的投入机制。