上市公司财务报表的Fuzzy评价方法

提出一种股票上市公司财务报表的Fuzzy综合评价方法。在深入分析上市公司财务报表内在联系的基础上，借助专家咨询，建立了财务报表Fuzzy评价指标体系，采用层次分析法形成各指标的权重，给出了各指标评价矩阵隶属度的确定方法。实践表明，应用该方法可有效地引导投资者客现、公正地评价上市公司的经营业绩与财务状况。     

应用主成分分析进行综合评价的一种改进方法

针对用主成分分析进行综合评价中所产生的评价结果易受异常值影响的缺点，提出了在主成分分析的过程中对原始数据作变量代换方法或基于等级相关阵方法，可以提高综合评价结果的稳定性．并用这2种方法对2003年30只股票上市公司的财务数据进行了综合评价。     

基于神经网络的股票估值综合模型

鉴于传统估值方法对我国股市不完全适用，结合经济类和工程类研究者对股票估价的一般方法，提出了一种基于神经网络的股票估值综合模型．模型以上市公司的财务数据、比率因素及历史股价作为输入变量，将市场均价作为输出值．通过实证分析，显示模型具有良好的估价性能，并且优于市赢率估价法，     

因子分析在股票论证中的应用

利用SAS软件,对深市537支股票2005年第一季度的八个财务指标进行了因子分析.将八个财务指标浓缩为三个因子,利用主成分法并作方差最大旋转,计算出了因子得分.根据得分多少,对各上市公司的股票作出了综合评价.     

我国上市公司股票期权激励机制研究

股票期权激励作为一种制度安排,有其重要的理论依据.我国上市公司股票期权激励中存在着一系列问题,须进一步改善上市公司治理结构,建立起有效的资本市场和完全竞争的职业经理人市场,并制定出科学合理的业绩评价体系,运用指数型期权,从而完善我国上市公司股票期权激励机制.     

财经剪贴

美证交会对上市公司高管薪酬披露规定做出重大修改美国证券交易委员会7月26日决定,要求上市公司披露高管包括股票期权奖励在内的薪酬信息。观察人士认为,这是最近10多年来美国监管当局对此方面规定做出的最重大修改。按照美国证交会的新要求,对于何时给予高管股票期权奖励以及为何对相应股票期权“倒填日期”,上市公司必须做出详细说明。业内人士指出,美国证交会此举主要是为了增加公司财务透明度,并平息不当的高管股票期权奖励在公司股东和公众中造成的不满情绪。给予股票期权是上市公司对高层管理人员的一种激励方式。这样,管理者就会努力…     

保护小股东的投资利益刻不容缓

目前，我国上市公司的股票分为流通股与非流通股。非流通股股东即大股东，非国家股和法人股莫属。有些大股东利用其在“一股独大”的控制地位或对公司的影响力，利用上市公司有利的条件为自己“圈钱”，通过关联交易、担保行为实现自身利益最大化，甚至在     

我国钢铁行业上市公司投资价值研究

利用经过修正的上市公司股票内在价值估值模型，研究了我国钢铁行业上市公司的内在价值．结果表明：随着我国钢铁行业上市公司的业绩进入上升通道，可获得的现金红利将是增长的；随着这些上市公司股票价值低估后的价值回归，最终股票价格将大于股票现价，从而其内在价值将明显大于股票现价．因此得出结论：目前我国钢铁行业部分上市公司股票具有投资价值．     

股票回购能提升企业价值吗?——基于供给侧改革背景的实证研究

2017~2018年，金融去杠杆的推进使得股市低迷，全国人大常委会对《中华人民共和国公司法》中股票回购的内容进行了专项修订，在二者的共同作用下，上市公司开始大规模进行股票回购，以提升企业价值。本文以2017~2018年以集中竞价方式回购了A股股票的上市公司为样本，实证检验了股票回购、高管持股与企业价值的关系。结果表明，股票回购对企业价值有显著的负向影响，而高管持股则可以调节这种负向影响。本文的研究印证了利益聚汇假说在股票回购领域的重要性，也为上市公司实施回购提供了新的参考。     

上市公司竞争力的灰关联评价

将灰色系统理论中的关联分析法应用于上市公司竞争力的综合评价中 ,建立了上市公司竞争力的综合评价模型 ,并以一家上市公司为例 ,对其在不同时期的竞争力进行了综合评价。与现有方法相比 ,该评价方法具有计算量小、操作简便等优点     

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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