查询词典 portfolio selection

This paper presents the portfolio selection problem of two-attribute money and creates a model of portfolio selection based on two-attribute money, which can both contain the existing portfolio models and overcome the above-mentioned deficiencies. A series of new concepts is put forward, such as, holding wealth, obtainable wealth, short-term utility function, short-term expectation-variance utility function, state-expectation-variance utility function, short-term expectation-variance utility curve, long-term expectation-variance utility curve, margin utility contribution force, additional contribution force, profit-risk exchange rate and optimal portfolio expansion curve; The state-expectation-variance analytical method is developed from the expectation-variance analytical method; A set of systematic theories concerning two-attribute portfolio selection is thus established.

本文提出了两属性货币的证券组合选择问题；创建了既能包含现有证券组合选择模型又能克服上述两点不足的两属性证券组合选择模型；提出了持有财富、可获财富，短期效用函数，短期期望—方差效用函数、状态—期望—方差效用函数，短期期望—方差效用曲线、长期期望—方差效用曲线，边际效用贡献力，附加贡献力，收益—风险替换率，最优证券组合扩展线等一系列新概念；把期望—方差分析方法发展成状态—期望—方差分析方法；建立了两属性证券组合选择模型的一套系统的理论。

The dissertation in depth analyzes the inner relationship between hedging and risk diversification, finds out that the relevance among prices or returns of different assets is the common basis for hedging and portfolio selection,and presents the notion of hedging portfolio selection referring to portfolio selection theory,which means that hedgers choose optimal hedging portfolio from a set of feasible hedging tools considering risky elements and hedger\'s real requirements during the course of hedging.

本文深入分析了套期保值与风险分散化思想的内在联系，指出资产之间价格的相关性是套期保值问题和资产组合选择问题的共同基础，提出应该在真正的资产组合选择理论意义上研究套期保值问题的研究思路，即在充分考虑套期保值过程中各种风险因素和套期保值者实际要求的基础上从可供选择的套期保值工具集合中选择最优套期保值组合，并称这种研究套期保值的方法为套期保值组合选择。

Properties of efficient portfolios and the efficient frontier to the model are systematically analyzed. Our main results concerning the properties are: every efficient portfolio can be solved by minimizing portfolio risk under a given level of portfolio return or by maximizing portfolio return under a given level of portfolio risk; on the efficient frontier, the risk is a convex and strictly increasing function of the return and the return is a concave and strictly increasing function of the risk; the utility function on the efficient frontier can be expressed as a quasi-concave function of the risk or the return if the investor's utility function is quasi-concave.

从理论上系统地对该模型下的有效投资组合和有效前沿的性质进行了分析，结果表明：每一个有效投资组合可通过在给定期望收益水平的条件下最小化投资组合风险来获得，或者在给定风险水平的条件下最大化期望投资组合收益来获得；在有效前沿上，风险是收益的严格单调递增凸函数，收益是风险的严格单调递增凹函数；当投资者的效用函数是拟凹函数时，则有效前沿上的效用可表达成风险或收益的拟凹函数。

Since they are now beginning to consider the necessity of technical manpower dispatching, the selection of the right temporary help service firms has become a very important issue.In the past, supplier evaluation and selection studies mostly focused on the manufacturing and service industries. Hence, this paper studied the past domestic studies conducted on supplier selection to understand the appropriate selection guidelines that would serve as the fundamental guidelines for the selection of outsourcing manpower companies. The PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluations) proposed by Brans and Vincke in 1985 was used as the supplier selection tool for the study. Finally, we employed a simulated case study where we consolidated the selection guidelines,method and tools to create a reference for future practical applications and academic researches.

在过去，有关于厂商评选的国内外文献中，其研究对象以制造业及服务业居多，针对人力派遣公司评选准则之文献则相当的缺乏，因此，本研究将讨论国内半导体设备供应商评选技术人力派遣公司之准则，藉由过去国内学者对供应商评选之相关研究，寻得适宜的评选准则，以做为评选人力派遣公司之基础，采用由Brans及Vincke在1985年所提出之PROMETHEE（Preference Ranking Organization Method for Enrichment Evaluations）法做为评选供应商之工具，并将此方法藉由Excel应用软体予以辅助计算，最后，使用模拟个案，将研究所提出的评选准则、方法及工具三者结合，提供实务运作及学术研究上作为参考。

The innovations of this essay are following:Ⅰ, Completely investigating the theoretic introduction, practical application, and effects on investment administrant, and putting forward that China should transit gradually from dracon quantity regulation rules to prudent man rules;Ⅱ, Lucubrating the rational, negative effects, and experience tests of portfolio allocation regulation, performance regulation, and industry structure regulation of pension funds over OECD countries;Ⅲ, Analyzing the rational and sensibility of relative rate of return guarantees of pension plan, and advancing the scheme of rate of return guarantees of China;Ⅳ, First investigating the investment policy of pension plans globally using "contents analysis" over the world pension plans;Ⅴ, Lodging that portfolio diversification should be the most important risk management instrument, and presenting efficiency measure model of evaluating portfolio diversification of pension funds;Ⅵ, Lucubrating the optimal portfolio allocation model during accumulation phase and decumulation phase of pension funds; taking for that risky assets should decrease with time reducing during accumulation phase, but during decumulation risky assets should increase.

指出了本文研究的主要结论，以及研究的不足和未来研究的方向。本文研究的创新点在于：（1）从法和经济学的原理角度，全面研究了&审慎人&原则的理论解释、实践应用、对投资管理人行为影响的实证分析以及成功实施&审慎人&原则的因素分析，提出我国养老基金的投资管制应该逐步从严格的数量管制原则过渡到&审慎人&管制原则；（2）深入研究了养老基金的资产配置管制、业绩管制和产业结构管制的基本原理、负面效应、实证检验等，以及对OECD国家的国际比较；（3）研究了养老金计划的相对收益率担保的基本原理，并对其作用机制进行了敏感性分析，提出了我国收益率担保机制设计的方案；（4）首次采用&内容分析法&对国际范围内的养老金计划的投资政策进行了研究，找出了投资政策应该包含的关键要素；（5）提出组合多样化是最重要的风险控制手段，并给出了衡量养老基金组合多样化程度的效率评价模型；（6）深入研究了养老基金积累阶段和缩减阶段的最优资产配置的数量模型，认为在积累阶段对风险资产的投资应该随着时间减少，而在缩减阶段，风险资产应随着时间增加。

Teacher-Student Double Subject Principle is an important precondition for title selection of Chinese Integrated Learning. II. Feasibility Principle is the value of title selection of Chinese Integrated Learning. III. The combination of multi-subject and uni-subject principle is an unexhausted headspring for title selection of Chinese Integrated Learning. IV. The linguistic nature of title selection target is not only the jumping-off place for title selection of Chinese Integrated Learning, but it is also the end-result for title selection of Chinese Integrated Learning.

本文主要运用文献资料与实例相结合的方法，注重于理论与实践的结合，重点探讨了义务教育阶段语文综合性学习的选题指导原则：第一，师生双主体性原则是语文综合性学习选题的前提；第二，可行性原则是语文综合性学习选题的价值所在；第三，开放性与学科性相结合是语文综合性学习选题的重要规则；第四，选题目标的语文性是语文综合性学习选题的出发点，也是语文综合性学习选题的归宿。

As PTDT does in threshold traits, PTDT is valid not only for different QTL effect level, but also for maker with multiple alleles and multiple tightly linked markers.(2) Under an appropriate selection ratio s (in this study, s is 0.2, 0.4, 0.6, 0.8, respectively), the power of PTDT can be improved and the genotying individuals can be decreased using selective genotyping design. However, the power of PTDT is related with population size and population structure, an appropriate selection ratio can be defined by simulation based on the existing data.(3) Among the three transforming methods, mixed-family selection is the best, full-sib selection has same power to mixed-family selection in many parameter combinations, and Estimated Breeding Value selection is inferior to them.

数量性状QTL定位的模拟研究结果表明：(1)数量性状经有效转化后，PTDT对数量性状QTL定位保持了阈性状QTL定位的稳健与高效，对不同效应大小的QTL(10％，30％，50％)PTDT都是一个有效的分析方法；(2)在多等位基因标记、多标记方面，PTDT的检验功效与阐性状分析时一样高效；(3)在合适的选择率下(本研究的分别为0.2，0.4，0.6，0.8，1.0)，选择性基因型测定不仅可以减少基因型测定的数量，而且可以提高PTDT的检验功效，但选择性基因型测定的PTDT检验功效很大程度上与群体大小和结构有关，这个可根据具体情况通过模拟找到一个合适的选择率；(4)三种转化方法的转化效力结果表明，家系内混合家系选择的转化效力最高，家系内全同胞选择次之，估计育种值选择的转化效力较差。

The process of the portfolio management mainly includes the valuating of each property risk and return, the optimization of the portfolio selection, the scaling of the portfolio efficiency.

证券投资组合管理的过程主要包括各项资产风险与收益的评估、投资组合的优化与投资组合业绩的衡量。

In Chapter 1, the progress in research of portfolio selection and its applications, in particular the state-of-the-art of dynamic portfolio selection are reviewed.

第一章回顾了投资组合选择理论研究的历史，综述了动态投资组合选择的研究现状。

BEGIN MILESTONES ===== 0x945e3c8 2008/03/11 17:02:35.7189: debug log dumped due to signal 11 ===== END MILESTONES ========== BEGIN RING BUFFER ===== 0x945e3c8 2008/03/11 14:41:03.1538: window 0x9510840 open location: old="", new="x-nautilus-desktop:" 0x945e3c8 2008/03/11 14:41:07.4960: finished loading window 0x9510840: x-nautilus-desktop: 0x945e3c8 2008/03/11 15:44:48.0181: selection changed in window 0x9510840 x-nautilus-desktop:///trash 0x945e3c8 2008/03/11 15:44:52.1769: selection changed in window 0x9510840 x-nautilus-desktop:///home 0x945e3c8 2008/03/11 15:45:50.2681: directory view open_location window=0xb1f02890: file:///home/heng/%E4%B8%8B%E8%BD%BD 0x945e3c8 2008/03/11 15:45:50.2681: window 0xb1f02890 open location: old="file:///home/heng", new="file:///home/heng/%E4%B8%8B%E8%BD%BD" 0x945e3c8 2008/03/11 15:45:50.2860: window 0xb1f02960 open location: old="", new="file:///home/heng/%E4%B8%8B%E8%BD%BD" 0x945e3c8 2008/03/11 15:45:50.2864: present NEW spatial window=0xb1f02960: file:///home/heng/%E4%B8%8B%E8%BD%BD 0x945e3c8 2008/03/11 15:45:50.6858: finished loading window 0xb1f02960: file:///home/heng/%E4%B8%8B%E8%BD%BD 0x945e3c8 2008/03/11 15:45:51.2669: selection changed in window 0xb1f02960 file:///home/heng/%E4%B8%8B%E8%BD%BD/temp.rar 0x945e3c8 2008/03/11 15:45:53.4393: delete files: file:///home/heng/%E4%B8%8B%E8%BD%BD/temp.rar 0x945e3c8 2008/03/11 15:45:53.6466: selection changed in window 0xb1f02960 0x945e3c8 2008/03/11 15:48:31.7278: selection changed in window 0xb1f02960 file:///home/heng/%E4%B8%8B%E8%BD%BD/temp.rar 0x945e3c8 2008/03/11 15:53:50.3606: fm_directory_view_activate_files window=0x9510840 x-nautilus-desktop:///home 0x945e3c8 2008/03/11 15:53:50.3658: directory view open_location window=0x9510840: file:///home/heng 0x945e3c8 2008/03/11 15:53:50.3659: window 0x9510840 open location: old="x-nautilus-desktop:", new="file:///home/heng" 0x945e3c8 2008/03/11 15:53:50.3660: present EXISTING spatial window=0xb1f02890: file:///home/heng 0x945e3c8 2008/03/11 15:53:52.2887: fm_directory_view_activate_files window=0xb1f02890 file:///home/heng/%E4%B8%8B%E8%BD%BD 0x945e3c8 2008/03/11 15:53:52.2891: directory view ===== END RING BUFFER ===== This configuration for the debug log can be re-created by putting the following in ~/nautilus-debug-log.conf (use ';' to separate domain names): max lines=1000

开始里程碑===== 0x945e3c8 2008/03/11 17：02：35.7189 ：调试日志倾倒由于信号11日=====完里程碑==========开始环形缓冲区===== 0x945e3c8 2008/03/11 14：41：03.1538 ：窗口0x9510840开放地点：旧=""，新=的" X鹦鹉螺-桌面说：" 0x945e3c8 2008/03/11 14：41：07.4960 ：成品装载窗口0x9510840 ：的X鹦鹉螺-桌面： 0x945e3c8 2008/03/11 15：44：48.0181 ：选择改变窗口0x9510840 的X鹦鹉螺-桌面：///垃圾桶 0x945e3c8 2008/03/11 15：44：52.1769 ：选择改变窗口0x9510840 的X鹦鹉螺-桌面：///主页 0x945e3c8 2008/03/11 15：45：50.2681 ：目录浏览open_location窗口= 0xb1f02890 ：档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署 0x945e3c8 2008/03/11 15：45：50.2681 ：窗口0xb1f02890开放地点：旧="档案：///主页/衡"，新="档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署" 0x945e3c8 2008/03/11 15：45：50.2860 ：窗口0xb1f02960开放地点：旧=""，新="档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署" 0x945e3c8 2008/03/11 15：45：50.2864 ：当前新的空间窗口= 0xb1f02960 ：档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署 0x945e3c8 2008/03/11 15：45：50.6858 ：成品装载窗口0xb1f02960 ：档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署 0x945e3c8 2008/03/11 15：45：51.2669 ：选择改变窗口0xb1f02960 档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署/ temp.rar 0x945e3c8 2008/03/11 15：45：53.4393 ：删除档案：档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署/ temp.rar 0x945e3c8 2008/03/11 15：45：53.6466 ：选择改变窗口0xb1f02960 0x945e3c8 2008/03/11 15：48：31.7278 ：选择改变窗口0xb1f02960 档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署/ temp.rar 0x945e3c8 2008/03/11 15：53：50.3606： fm_directory_view_activate_files窗口= 0x9510840 的X鹦鹉螺-桌面：///主页 0x945e3c8 2008/03/11 15：53：50.3658 ：目录浏览open_location窗口= 0x9510840 ：档案：///主页/珩 0x945e3c8 2008/03/11 15：53：50.3659 ：窗口0x9510840开放地点：旧="的X鹦鹉螺-桌面："，新="档案：///家/恒" 0x945e3c8 2008/03/11 15：53：50.3660 ：目前现有的空间窗口= 0xb1f02890 ：档案：///主页/珩 0x945e3c8 2008/03/11 15：53：52.2887： fm_directory_view_activate_files窗口= 0xb1f02890 档案：///家/恒/％类％ b8 ％ 8B条％，并可％屋宇署％屋宇署 0x945e3c8 2008/03/11 15：53：52.2891 ：目录浏览=====完环形缓冲区=====此配置为调试日志，可以再创造把下列/鹦鹉螺-调试- log.conf （使用'；'分开域名）：最大值线= 1000 我帮你翻译了这么多，你才给我5分，我亏死了，再给我加30还差不多可以不下次我可以帮你的

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。