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Search Results: 1 - 10 of 323394 matches for " 李建新 "
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评价投资基金长期业绩的新模型——基于对传统模型的批判
A New Model to Evaluate the Long-Term Investment Performance of Investment Fund ——Based on Criticism to Traditional Model
 [PDF]

张晖,
Finance (FIN) , 2014, DOI: 10.12677/FIN.2014.42007
Abstract:
本文研究国内开放式基金长期投资业绩的评价问题。我们指出了传统评价模型与指标在评价投资基金的长期业绩时存在着谬误与局限。为真实地反映基金机构的投资水平,我们设计了基于计量经济学虚拟变量回归模型的“胜负链统计法”。新方法去除了传统模型的局限性,能比较真实客观地评测基金相对于市场基准的长期运营业绩。文章最后利用新方法,对国内开放式基金的运营状况做了实际中肯的评价。
This paper studies the evaluations of long-term investment performance of domestic open-end funds. We point out that the traditional evaluation model and index have some fallacies and limi- tations when evaluating the long-term investment performance of investment funds. To truly re- flect the investment level of a fund agency, we design a new method called “statistics of outcome chain”, based on the Dummy variable regression model. The new method eliminates the limita- tions of traditional model, and it can objectively evaluate the long-term investment performance of funds. Finally, using the new method, we give some fair evaluations to some domestic open-end funds.
股权激励机制对我国上市公司绩效的影响
The Effects of Equity Incentive on the Performance of Listed Companies in Chinese Stock Market
 [PDF]

陈彪,
Operations Research and Fuzziology (ORF) , 2015, DOI: 10.12677/ORF.2015.52004
Abstract:
本文研究中国上市公司实施的股权激励机制对公司绩效的影响。我们根据统计学假设检验原理,对股权激励实施前后企业的平均营业总额做出了显著性比较,探讨股权激励对企业规模的影响。其次,我们利用计量经济学原理分别以企业净利润和净资产收益率作为被解释变量,以股权激励行权阶段作为虚拟解释变量直接建立回归模型,客观地考查了在不同的行权阶段,股权激励对企业的盈利水平和经营质量的影响。研究结果表明,中国上市公司实施的股权激励对公司业绩具有一定的促进效果,但是这种促进效果在后期趋弱。
This paper studies the effects of equity incentive on the listed companies of Chinese stock market. We discuss how the equity incentive affects the performance indicators of the companies in dif-ferent exercise stages. Based on the hypothesis testing theory of statistics, we compare the com-panies’ average turnover before and after the implementation of equity incentive, in order to dis-cuss how the equity incentive affects the size of these companies. According to the principles of econometrics, we choose the profit and the rate of return (ROE) as the explained variables sepa-rately, the different exercise stages of the equity incentive as the dummy explanatory variables to establish regression models. The research results show that the equity incentive implemented by the listed companies in Chinese stock market has promoting effects in a degree on the performance of the companies, but the effects show unstable at later stages.
基于影响因素分析的动态证券投资组合模型
Dynamic Portfolio Model Based on the Analysis of the Influencing Factors
 [PDF]

,
Operations Research and Fuzziology (ORF) , 2015, DOI: 10.12677/ORF.2015.52003
Abstract:
本文讨论了长期证券投资组合中的策略问题。长期证券投资中,投资收益动态地受制于影响证券价格波动的各种因素。为了获得令人满意的投资收益,我们通过分析不同证券对影响因素的不同敏感度,相应地预测不同证券动态的收益率,并以此设立不同证券在投资组合中的动态投资比例,从而建立了基于影响因素分析的动态证券投资组合模型。利用这个模型,我们具体地讨论了在不同的投资环境中,不同的投资时期,如何根据具体的影响因素,动态地调节投资比例,使投资组合更好地适应市场变化,从而达到降低投资风险,提高收益的目的。
This paper discusses the strategies of long-term securities portfolio. For a long-term securities in-vestment, its investment income is limited dynamically to the various factors affecting stock price fluctuations. In order to obtain satisfactory return, by the sensitivity analysis of different securities to the influencing factors, we predict the dynamic yields of different securities, set up dynamic investment proportion to different securities in a portfolio, and then establish a dynamic portfolio model based on the analysis of the influencing factors. Using this model, we discuss concretely how to dynamically adjust investment proportions in portfolios, according to the influencing factors in different investment environments and different investment periods to make the portfolio adapt to market changes better, so as to reduce investment risks and increase yields.
流通股总量对股市平均股价的影响
The Influence of the Total Amount of Tradable Shares on the Average Price of Tradable Shares in the Stock Market
 [PDF]

瑞鑫,
Operations Research and Fuzziology (ORF) , 2013, DOI: 10.12677/ORF.2013.32003
Abstract:
本文研究中国股市中流通股总量对股市平均股价的影响。我们选择流通股总量为解释变量,股市平均股价为被解释变量,建立计量经济学回归模型,分别从长期和细节两方面来研究流通股总量与股市平均股价之间的关系。研究结果表明,长期来看,股市平均股价与流通股总量之间存在着长期的均衡关系。从短期和细节来看,流通股总量的增长对股市平均股价存在着抑制作用。流通股总量达到一定的规模后,随着流通股总量的加速增长,其抑制作用变得越来越显著。
This paper researches the influence of the total amount of tradable shares on the average price of tradable shares in China’s securities market. We choose the total amount of tradable shares for the explana-tory variable and the average price of tradable shares for the explained variable. According to the relevant theories and methods of econometrics, in order to research the influence, we establish econometric models by using ways of long-term analysis and detail analysis. Our research shows that there is a long-term balance re-lationship between these two variables. In the short-run, the total amount of tradable shares depresses the av-erage price of tradable shares, and when the scale of the total amount of tradable shares becomes large, the depression becomes more and more significant as the total amount of tradable shares grows.
倒金字塔理论与21世纪中国老龄社会

期刊检索-中国人口科学 , 2000,
Abstract: 如果说20世纪后半叶是人口增长的世纪,那么21世纪则是人口老龄化的世纪,人口大国的中国也不例外。中国人口年龄结构也正由传统的金字塔型(正三角形)转向倒金字塔式的老年型。本文从论述倒金字塔理论出发,强调了从理论上认识老龄社会的重要意义。并且尝试从人口学自身的角度出发,界定新的人口年龄构成划分的标准,重新审视未来的老龄社会,得出了有意义的结论。
中国人口的婚姻状况与死亡水平差异

期刊检索-中国人口科学 , 1994,
Abstract: 本文利用全国第四次人口普查资料对中国人口婚姻状况及其死亡水平进行了分析。总体来说,不同婚姻状况的人口有着不同的死亡水平,有配偶人口的死亡水平低于无配偶人口(包括未婚、丧偶和离婚);而且在不同的年龄段上,未婚、丧偶、离婚的死亡率与有配偶的相比也有程度不同的差异。本文还对不同婚姻状况的死亡水平差异的原因做了探讨和解释。
伊斯特林生育理论与中国农村人口调控

期刊检索-中国人口科学 , 1996,
Abstract: 本文以伊斯特林生育理论为基础,结合中国农村人口生育率转变的特点,探讨了解决中国农村人口问题的思路和方法。中国农村人口问题的解决不仅要依靠有效的计划生育政策,更要注重非政策因素对生育率转变的重要作用。为此,本文提供了一些富有启发性的例证。
地图制图学与地理信息工程专业点状态分析

国土资源遥感 , 2006, DOI: 10.6046/gtzyyg.2006.01.20
Abstract:
德国饮用水水源保护区的建立与保护

地理科学进展 , 1998, DOI: 10.11820/dlkxjz.1998.04.012
Abstract: 在德国,饮用水被确定为生活中的第一物质材料,饮用水水源保护区的建立与保护是一项法律程序。德国人经过100多年的长期实践,迄今为止已建立近20000个饮用水水源保护区,在水源地保护方面积累了大量经验,被欧美工业国吸收采纳。本文介绍了德国饮用水水源保护区的政策、规范与模型;保护区的划定原则与方法,以及利用岩石土壤对水污染的过滤净化能力或者水体自然净化功能,分区分级保护和利用水源保护区的实用哲学。本文还描述了全流域生态系统保护与水源保护区的关系,东德与西德水源保护工作的差距。
新疆山盆系统绿洲经济生物圈保护区模式探讨

中国生态农业学报 , 2004,
Abstract: 研究指出新疆“三山夹两盆”山盆系统景观带谱决定其荒漠绿洲生物圈保护区的逆序组织模式,人工绿洲必须实施岛国经济外向发展模式,其发展途径为内部生态经济优化和发展外向型经济。并提出建立阿尔泰山、天山与昆仑山水源和生物多样性保护区,古尔班通古特沙漠和塔克拉玛干沙漠自然保护区以及退耕还牧、发展高效生态农业模式的建议。
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