1) without short selling
不允许买空
1.
This paper uses CVaR to replace variance or VaR to measure risk;establishes the utility Function on mean;CVaR and studies portfolio selection problem without short selling.
本文利用CVaR方法代替方差或VaR来度量风险,建立了关于期望和CVaR的一般二元效用函数,进而研究了不允许买空时n种风险资产投资组合的效用最大化问题。
2) no short sale
不允许卖空
1.
It has been a very difficult problem to solve Markowitz model with no short sale in finance.
对不允许卖空情况下的Markowitz模型的求解 ,在金融学里面 ,一直是个很棘手的问题 。
2.
Under the condition of no short sale,a portfolio selection problem about a company with liabilities is discussed.
讨论在不允许卖空的限制条件下负债企业的组合投资问题,建立了最优组合投资的选择模型,给出了负债企业最优的投资策略以及投资的有效边界,重点研究了有效边界的静态性质,以及当企业的负债发生变化时有效边界和最优投资策略的动态性质。
3) without short sale
不允许卖空
1.
On the basis of Markowitz s model for portfolio investement decision,this paper studies the efficient frontier of portfolio without short sale and its character,presents portfolio investement decision method under the condition of non short sale.
根据组合证券投资决策模型，研究了不允许卖空的组合证券投资的有效边界及其性质，给出了不允许卖空情况下组合证券投资决策方法。
4) without short sales
不允许卖空
1.
The paper studied mean-variance and mean-VaR models without short sales respectively,then used pivoting algorithm and sequence of quadratic programming method to solve those models.
文章研究了不允许卖空情况的均值-方差和均值-VaR两种投资组合模型,并运用不等式组的旋转算法并结合序列二次规划法进行求解。
2.
The paper respectively proposed mean-variance and mean-VaR models without short sales,then used piv- oting algorithm and sequence of quadratic programming method to solve those models.
文章提出了不允许卖空情况的均值-方差和均值-VaR 两种投资组合模型,并运用不等式组的旋转算法或结合序列二次规划法进行求解。
5) not allow
不允许
1.
This paper,as for the appraisable standard,demonstration and corresponding conclusion about the years of "Buting" meaning "not allow" maintained by Xie Zhi-bin,presents the point of view of Han Dynasty through the different words of "not allow" and "Buting",the joint use of "ting" and "allow",the explanation about "ting" by the ancient people and the analysis of two contradictory standards.
本文针对谢质彬先生认定的“不听”作“不允许”解年代的判定标准、论证过程、相应结论,通过“不许”同“不听”异文、“听”“许”连文、古人对“听”字的训释以及谢文所提两个标准的互相予盾等情况的辨析,论证了“不听”作“不允许”解不迟于汉初的观点。
2.
XIE Zhi-bin s academic paper "The First Evidences of BuTing" meaning "not allow".
质疑谢质彬先生《"不听"作"不允许"解的始见年代及书证》一文文献证明:"不听"作"不允许"义在先秦就已出现,汉魏以来继续沿用,并不是始见于西晋。
3.
In the ancient books "not listen" meant "not allow", and vice versa.
考之于古籍"不听""不许"互为异文、古训家以"许"训"听"、"听""许"同义连文诸语言事实,无一不在说明,"不听"用为"不允许"义最迟产生于汉初。
补充资料：卖空买空
1.资本主义制度下的一种商业投机活动。投机者预测某种股票﹑公债﹑外币﹑黄金或其它货物要跌价而卖出后再买进;或预测要涨价而买进后再卖出。买卖双方都不用现货现款，只就进出之间的差价结算盈亏。亦用来比喻投机倒把的行为。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条