基于Lévy过程的永久美式封顶期权定价

对于永久美式封顶看跌期权,就是在永久美式期权的基础上加上了如下条件:当标的资产的价格达到合约规定的下限时,期权的出售方有权按执行价格与合约下限价格的差价来回购.本文将在标的资产价格的对数收益率遵从Lévy过程的条件下,对永久美式封顶期权进行定价研究.主要的思路是:将这个期权定价问题转化成为最优停止问题,运用Wiener-Hopf因子分解来寻找最优停止规则,进而得到该期权的定价结论 .     

关于欧式交换期权定价的研究

讨论在跳跃-扩散模理上某一类多资产型期权即欧式交换期权的定价问题,利用套期保值的方法求出了该期权价格所满足的带终值条件的随机微分方程,该方法还可用于推广得出其它多资产型期权(如商期权,蓝子期权)的B-S定价公式.     

关于欧式交换期权定价的研究

讨论在跳跃-扩散模理上某一类多资产型期权即欧式交换期权的定价问题,利用套期保值的方法求出了该期权价格所满足的带终值条件的随机微分方程,该方法还可用于推广得出其它多资产型期权(如商期权,蓝子期权)的B-S定价公式.     

求解欧式看跌期权两种数值解法的比较

基于有限差分法、径向基函数法和四级四阶龙格-库塔法(RK4),给出了两种求解欧式看跌期权定价问题的数值计算格式.算例计算结果显示,基于径向基函数法、四级四阶龙格-库塔法的数值计算格式精度更高.     

不确定环境下彩虹期权定价

期权定价问题是现代金融中最基本的问题之一.在以往的期权理论中,主要在随机环境下处理期权定价问题.本文尝试运用不确定理论去处理一类特殊的多资产欧式期权—彩虹期权的定价问题.     

分数跳-扩散模型下具有交易费用的回望期权定价研究

B-S模型成功解决了完全市场下欧式期权的定价问题.文章主要研究不完全市场下标的资产股票价格服从分数跳-扩散过程且具有交易费用的回望期权定价问题.利用无套利原理和证券组合技术,建立回望期权定价模型,并依此模型给出分数跳-扩散过程下具有交易费用的回望期权定价公式,推广已有的回望期权定价理论.     

一类带红利支付的永久美式看涨期权的定价

研究标的资产价格服从分数Omstein—Uhlenbeck过程且具有连续红利支付的永久关式期权的定价问题．通过求解相应的自由边界问题,对标的资产价格服从分数Ornstein—Uhlenbeck过程且具有连续红利支付的永久美式看涨期权的定价以及实施期权时的临界标的资产价格给出了相应的显式解．     

次分数布朗运动机制下的外汇期权定价模型

次分数布朗运动可较好地刻画标的资产价格波动长程相关性的特征.文章主要探究次分数机制下外汇期权的定价问题.运用Delta对冲方法,得到模型下外汇期权满足的偏微分方程定解问题.进一步给出外汇期权的定价公式及相关数值计算结果.结果表明,在相同参数下,外汇期权在次分数机制下的价格低于其在布朗运动机制下的价格.     

外汇欧式期权定价与对冲

经典的Black-Scholes模型基于随机微分方程理论,利用概率工具,为欧式期权进行定价和对冲提供了方法,在其基础上稍作改进,就可以解决外汇欧式期权的定价和对冲问题,给出具体的定价公式以及出于对冲目的所需要持有的资产组合。     

外汇欧式期权定价与对冲

经典的Black-Scholes模型基于随机微分方程理论,利用概率工具,为欧式期权进行定价和对冲提供了方法,在其基础上稍作改进,就可以解决外汇欧式期权的定价和对冲问题,给出具体的定价公式以及出于对冲目的所需要持有的资产组合。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.