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- In chap-ter2,3.We study portfolio selection strategy to base on the safety first criteria. 第二，三章研究跳跃-扩散模型中基于“安全第一准则”的最优投资组合策略，第四章研究跳跃-扩散模型证券投资组合选择的随机微分对策。
- The second part of the thesis is about the application of credibility theory. We employ credibility theory to study portfolio selection problem, and build three types of portfolio selection models in fuzzy environment. 论文第二部分是可信性理论的应用:将可信性理论应用于有价证券选择问题,通过模糊变量的期望值和方差,以及可信性测度建立了三类模糊环境下的有价证券选择模型。
- Because empirical distributions of rates of return on risky securities have characters of skewness and excess kurtosis, this article puts forward studying portfolio selection model conditional on non-normal stable distributions. 摘要针对风险证券收益率的经验分布所具有的偏态和过度峰态等非正态分布特征，提出在非正态稳定分布条件下研究投资组合模型。
- His years of study were useful in his job. 他多年的学习有助于他的工作。
- How much did it cost you to study abroad? 你出国深造花了多少钱？
- She secludes herself in her study to work. 她把自己关在书房里埋头研究。
- This reference book is very useful to our study. 这本参考书对我们的研究很有用。
- She will never let slip a chance to study abroad. 她绝不会错过出国学习的机会。
- Her social life get in the way of her study. 她的社交生活妨碍了学业。
- Study well and make progress every day. 好好学习，天天向上。
- She paces the whole class in English study. 她在学习英语方面为全班树立榜样。
- Chemists study the nature of gases. 有的化学家研究气体的性质。
- I have a good mind to study abroad. 我很想到国外去读书。
- It is harder to teach than (to) study. 教书比读书辛苦。
- Well as he does in study, he is not arrogant. 虽然他功课很好，却一点都不傲慢。
- You must study hard for the benefit of your own. 为了你自己的利益你必须努力学习。
- You must pay attention to your study. 你必须专心学习。
- Do you feel any aversion to hard study? 你嫌恶努力学习吗？
- I do not care to study English today. 我不喜欢今天念英文。
- He devoted himself in philosophical study. 他致力于哲学研究。
