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31.
In this article, the valuation of power option is investigated when the dynamic of the stock price is governed by a generalized jump-diffusion Markov-modulated model. The systematic risk is characterized by the diffusion part, and the non systematic risk is characterized by the pure jump process. The jumps are described by a generalized renewal process with generalized jump amplitude. By introducing NASDAQ Index Model, their risk premium is identified respectively. A risk-neutral measure is identified by employing Esscher transform with two families of parameters, which represent the two parts risk premium. In this article, the non systematic risk premium is considered, based on which the price of power option is studied under the generalized jump-diffusion Markov-modulated model. In the case of a special renewal process with log double exponential jump amplitude, the accurate expressions for the Esscher parameters and the pricing formula are provided. By numerical simulation, the influence of the non systematic risk’s price and the index of the power options on the price of the option is depicted. 相似文献
32.
The multiple non symmetric correspondence analysis (MNSCA) is a useful technique for analyzing a two-way contingency table. In more complex cases, the predictor variables are more than one. In this paper, the MNSCA, along with the decomposition of the Gray–Williams Tau index, in main effects and interaction term, is used to analyze a contingency table with two predictor categorical variables and an ordinal response variable. The Multiple-Tau index is a measure of association that contains both main effects and interaction term. The main effects represent the change in the response variables due to the change in the level/categories of the predictor variables, considering the effects of their addition, while the interaction effect represents the combined effect of predictor categorical variables on the ordinal response variable. Moreover, for ordinal scale variables, we propose a further decomposition in order to check the existence of power components by using Emerson's orthogonal polynomials. 相似文献
33.
针对相干光正交频分复用(coherent optical orthogonal frequency division multiplexing,CO-OFDM)系统中相位噪声引起的载波间干扰(inter-carrier interference,ICI)问题,提出了一种基于线性预处理的新判决反馈相位噪声抑制算法。该新算法改进了线性预处理部分,利用循环前缀与OFDM符号固有的相关性,在时域进行简单的线性组合运算,充分利用了OFDM符号中冗余信息。仿真分析表明,在激光器线宽为200 kHz且误码率(bit error rate, BER)为10-4时,与判决反馈相位噪声抑制算法和一次迭代的判决反馈相位噪声抑制算法相比,该新算法BER曲线的信噪比(signal to noise ratio,SNR)分别改善了3 dB和1 dB,有效地降低由ICI引起的错误平层。 相似文献
34.
在世俗之上:“信仰中国”的认知与实践价值 总被引:2,自引:0,他引:2
李向平认为,从辛亥革命开始的现代中国"革命"运动对当代中国的"信仰"变迁及其重建产生了重要而深远的影响,源自于民国初年以"三民主义"为核心的"主义信仰"及其建构渐次成为"主义建构信仰"乃至"主义代替宗教"的政治思潮,深刻制约着现代中国"信仰"的建构与演变趋势。傅有德认为,与西方的信教主体不同,中国的宗教性信仰主体存在着较为普遍的"一人多信"现象,这既与宗教信仰间的兼容甚至合流有关,也与信仰而不必委身的理念有关,还与缺乏终极的精神关怀有关,更与中国人思维方式中"求同存异"的特点有关。任剑涛认为,中国迈上小康之路的这一变化,将四维中国的形象完整地刻画出来:"经济中国"构成中国的基础性物化维度,"政治中国"构成中国的国家—法律物化维度,"文化中国"构成中国的物质生活与精神生活的交叠维度,"信仰中国"构成中国的深刻价值支持维度;四个维度相互支撑,构成完整的、现代的"中国"。 相似文献
35.
《Omega》2014
In recent years, the issue of water allocation among competing users has been of great concern for many countries due to increasing water demand from population growth and economic development. In water management systems, the inherent uncertainties and their potential interactions pose a significant challenge for water managers to identify optimal water-allocation schemes in a complex and uncertain environment. This paper thus proposes a methodology that incorporates optimization techniques and statistical experimental designs within a general framework to address the issues of uncertainty and risk as well as their correlations in a systematic manner. A water resources management problem is used to demonstrate the applicability of the proposed methodology. The results indicate that interval solutions can be generated for the objective function and decision variables, and a number of decision alternatives can be obtained under different policy scenarios. The solutions with different risk levels of constraint violation can help quantify the relationship between the economic objective and the system risk, which is meaningful for supporting risk management. The experimental data obtained from the Taguchi's orthogonal array design are useful for identifying the significant factors affecting the means of total net benefits. Then the findings from the mixed-level factorial experiment can help reveal the latent interactions between those significant factors at different levels and their effects on the modeling response. 相似文献
36.
本文利用序列的双重性原理对移动傅立叶变换作了深入的研究.根据频率采样理论,将模拟系统的传递函数H(ω)分解为若干子系统之和,并画出其结构框图,这个系统可以用来测量模拟信号的移动离散谱,也可用作低通、带通或梳状滤波器.最后还给出实现该系统的具体方框图. 相似文献
37.
R. James Tomkins 《Revue canadienne de statistique》1984,12(2):99-106
This article investigates circumstances under which seven important martingale properties are preserved by the following six martingale generalizations: quasimartingales, amarts, martingales in the limit, games fairer with time, progressive martingales, and eventual martingales. 相似文献
38.
In this paper, an infinite class of partially balanced incomplete block (PBIB) designs of m+1 associate classes is constructed through the use of a series of row-orthogonal matrices known as partially balanced orthogonal designs (PBOD) of m-associate classes. For the purpose, a series of PBOD is obtained through a method described herein. An infinite class of regular GD designs is also reported. 相似文献
39.
试析我国农村剩余劳动力的转移 总被引:6,自引:0,他引:6
张德元 《安徽农业大学学报(社会科学版)》2001,10(1):15-16
大量农村剩余劳动力的存在一直是制约我国农业、农村和整个国民经济发展的瓶颈。本文通过研究国内外农村剩余劳动力的转移方式,认为从长远观点看,农村剩余劳动力的“半转移”形式并不适合我国国情,而应将乡镇企业发展和小城镇建设作为吸纳农村剩余劳动力的主要载体。并阐明了与这种转移方式相配套的机制转变的必要性。 相似文献
40.
洋桔梗叶盘高频率不定芽诱导的初步研究 总被引:1,自引:0,他引:1
采用正交设计法研究了细胞分裂素ZT,生长素NAA,培养基pH值和光照强度对洋桔梗叶盘不定芽诱导的影响.结果表明,实验的4个因子对洋桔梗叶盘不定芽都具有极显著的诱导作用,最佳培养基和培养条件为:MS ZT 0.5 mg/L NAA 0.01 mg/L,培养基pH值为6.3,光照强度为3000 lx.该处理中每叶盘再生不定芽数平均达9.41个. 相似文献