中小投资者的投资组合模型分析

组合投资是一种有效地分散风险的投资决策方法.以中小投资者为对象,在探索建立中小投资者的二次规划模型的基础上,应用单纯形法对模型的求解方法进行了分析探讨,并加以实例验证,结果证明了模型及其求解方法的可行性和有效性,从而能为中小投资者的投资决策提供一定的参考.     

上市公司财务报表分析的主要关注点

随着人们的消费观念和投资观念的转变,以前以储蓄为主要投资手段的大部分中产阶级和相当一部分普通大众都纷纷加入了这一风险利润成正比的股市投资中来.证券投资已经成为百姓经济生活中不可或缺的一部分.然而大多数中小投资者不是专业人员,缺乏必要的财务常识,很多投资者因为不懂报表而错失买卖股票的良机.因此,如何正确地分析上市公司财务报表,挖掘真正具备投资价值的公司,是广大投资者的当务之急.     

基于股票价格波动问题的消除系统风险的投资组合模型研究

本文以中小企业板为研究对象,在探索结合投资组合理论与股票价格波动理论的基础上,对股票价格波动过程中低点、高点出现的规律进行分析,通过统计检验,建立阶段周期低点和高点回归预测模型,最后应用该模型进行股票投资的实证分析.研究结果表明,基于阶段周期回归预测模型的投资操作可以有效规避系统风险,提高中小投资者的收益率,对中小投资者进行投资选择具有很好的指导意义.     

论创业板市场中小投资者利益的保护

我国创业板市场正处于发展初期,中小投资者利益的保护问题十分突出。本文主要分析创业板市场所面临的风险和中小投资者的投资行为,进而提出如何在我国创业板市场建立中小投资者利益保护机制。     

中小科技企业融资模式的选择与创新——基于杭州市高新区(滨江)的科技孵化与反哺

资本市场融资是解决中小企业融资困境的重要路径.中小企业在上市前往往以内生性增长为主,通过自身积累不断增加产能以实现企业扩张,但内生性增长到一定阶段都不可避免地会遇到发展瓶颈.资本市场融资是快速提升中小企业特别是中小科技企业实力的重大举措,有利于中小科技企业产品升级和自主创新,有利于中小科技企业治理结构的完善和竞争力的提升,有利于中小科技企业产业结构调整和规模发展,有利于促进区域经济的可持续发展.     

非理性投资者行为的IPO抑价理论分析

借鉴行为金融学中有关投资者非理性行为的观点,对中国广大中小投资者的非理性行为和中国IPO抑价的关系进行了研究.假定发行公司以筹集资金最大化为目标函数,理性的机构投资者作为代理人持有股票,并在上市后把IPO股票转售给非理性的中小投资者,以攫取他们的消费者剩余,达到目的.通过模型化该过程,发现中国的IPO高抑价与中国存在众多的非理性中小投资者有直接的关系,是他们导致了抑价这一结果.     

手机“时代秀”三城市投资对比分析

细分潮流下的市场正日益成为中小资本的进入捷径。正如熊彼得老前辈所说:供给同样创造着需求。 以手机为例,它甚至都不再是高档消费品。但就是这样一种都市人的日常用具,偏偏衍生出一个全新行业——手机美容,而且在一些地方,手机美容业已经成为小额度投资热点。记者为此分别采写了北京、上海、深圳三地手机美容业的投资状况,希望对中小投资者有所裨益。     

新形势下券商之对策

证券经纪业中,投资咨询服务水平业已成为衡量券商经纪业务服务质量高低的主要方面,佣金自由化的压力、加入WTO的挑战、市场规范化的约束和保护中小投资者利益的义务都要求券商提供个性化、专业化的主动服务,进行经纪业组织结构的创新,迅速提高投资咨询水平.     

兰界语录

这是我自己的投资,你没有尊重我的意见干吗要擅自替我做主?——在数次被—位兰家将其寄养的品种卖了数月而不通知时,—位女兰友愤愤又直接对那位兰家说道。其实,这是目前兰界较为普遍的现象之一。作为投资者,他(她)有权对自己的投资品种的出售与否有着决定权,而代养人不过是一个“经纪人”的角色,除非投资者有明确授权,否则“经纪人”怎么可以对投资者的投资“先斩后奏”呢?而往往这种“先斩后奏”的背后恐怕往往也有什么猫腻吧。     

考虑损失厌恶的最优消费投资决策

行为金融文献表明,投资者效用既取决于消费,又取决于其持有的金融资产的价值变化.基于上述两点,研究了最优消费投资问题.将行为金融学中投资者损失厌恶这一重要心理纳入经典效用函数,给出了基于消费和风险资产价值变化的目标效用函数,建立了考虑投资者损失厌恶的最优消费投资模型,运用动态规划原理得到了最优消费和投资问题的值函数及最优消费投资策略.最后以一个两期最优消费投资算例说明该模型的应用.因考虑了投资者实际决策心理,建立的最优决策模型是对投资者实际决策行为的良好描述,由此得出的最优消费投资策略也可以更好地指导投资者消费投资行为.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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