论期权交易(五) 商品期权交易

<正> 在论文的前几部分中,我们主要研究的是期权的基本理论及其主要策略等等,向大家展示的是期权交易中的一些基本知识和技能。在这一部分里则试图主要从实务中了解和研究期权的具体做法及其优越性。我们之所以选择商品期权进行分析和研究,是因为它是诸多期权标的中比较有代表性的一种,同时也是现在许多商人或投机家乐于投资的期权。     

论影响信息商品价格的因素

论影响信息商品价格的因素●程刚信息商品和其它物质商品一样，具有使用价值和价值，当然也有一定的价格。但是，由于信息商品与一般物质商品相比，有其特殊性，具体表现在：①相对物质商品而言，信息商品的生产具有非重复性，因而难以找到一个平均化的社会必要劳动时间和...     

廿载风雨成功路——陕西价格改革回顾与思考

廿载风雨成功路陕西价格改革回顾与思考熊经肇党的十一届三中全会以前,产品经济模式下形成的陕西价格管理体制以计划价格为主,权限高度集中,价格形式单一,企业几乎没有定价权,这种僵化的价格管理体制必然导致价格体系严重扭曲,束缚着生产力和经济的发展,价格改革势...     

一种新型自校正控制器设计

本文采用连续时间过程描述与离散时间控制律及参数估计相结合的方法,导出了一种参数自适应控制的混合设计方案。     

保持清醒,进一步提高对建立价格调节基金重要性和必要性的认识

近几年来,在各级党委、政府的关心支持和有关部门的共同努力下,我省价格调节基金制度建设有了较快发展,取得了一定的成效.日前,省级副食品价格调节基金制度正在建立,每年2000万元的规模基本落实.从各地的情况看,10个地市及44个县已经建立了副食品价格调节基金制度,还有一些地方正在积极筹建当中.已经建立的地方,累计征收价格调节基金8042万元,投入使用1500多万元,在扶持生产、建设市场、调节供求、平抑物价等方面发挥了较好的作用.宝鸡、西安、咸阳等地在这项工作中,起步早,进展快,成效大.他们的成功经验和做法,为各地建立价格调节基金制度起到了很好的示范、带动作用.     

含累计期权的基差贸易实证分析

近年来,国内期货市场出现了一种内嵌“累计期权”的含权贸易类型,针对该含权基差贸易对期货市场操作影响日益增强的现状,本文采用理论推导与实证分析相结合的方法,分解并推导定价阐释累计期权,基于硅锰合金实操合同实证视角,进一步分析投资者的实际损益,得出累计期权的权益和义务不对等的结果,并提出了相应的监管建议,旨在加强风险监管,促进交易双方损益公平性及商品期货市场未来高质量发展。     

新常态下中国对非洲出口贸易商品结构的影响因素研究——基于非正规经济的视角

在中国经济发展新常态下,优化对非洲的出口贸易商品结构是"优进优出"的重要内容。在非洲存在大规模非正规经济的现实下,影响中国对非洲出口贸易商品结构的因素有哪些?本文以中国对非洲46个国家2007-2013年的出口贸易相关数据,建立计量模型,全面阐释中国对非洲出口贸易商品结构的影响因素。研究表明:中国对非洲出口贸易商品结构受经济和制度因素的影响。由于非正规经济在中国对非洲出口中的作用差异较大,本文进一步建立面板门限模型检验非正规经济与中国对非洲出口贸易商品结构的非线性关系。在此基础上,提出促进中国对非洲出口贸易商品结构优化升级的政策建议。     

一种基于QoS的多任务实时集群系统负载均衡算法

负载均衡算法是多任务实时集群系统的一个关键技术。在分析了常见的轮转式均衡调度算法和任务最少优先法的优缺点基础上,针对实时集群系统处理多类任务的特点,引入了加权负载率的概念来更准确地描述各分布式集群节点的负载状况。提出了通过任务QoS映射为负载权值的思想,并给出了一种改进的任务最少优先算法——加权负载率最小法,描述了以加权负载率表为核心的多任务均衡调度算法。最后,通过仿真验证了该算法明显优于前两种算法。     

A meta-analysis of consumer impulse buying

This study provides a meta-analysis of the impulse buying literature and examines common antecedents for impulse buying behavior. An exploration of the impulse buying literature results in the establishment of three overarching constructs used as independent variables: dispositional, situational, and sociodemographic variables. The Kruskal–Wallis test was used to assess which variables are shown to have the strongest effect on impulse buying and suggest that the dispositional/situational interaction variables have the strongest relationship with impulse buying followed by dispositional, situational, and sociodemographic main effects, respectively. Specific dispositional, situational, and sociodemographic constructs are explored further along with moderating effects. Implications of the findings are discussed.     

Segmentation of impulse buyers in an emerging market – An exploratory study

Impulse buying promises to be a dominant buying behaviour in the highly conducive environment of emerging markets like India. However, existing research in these markets is largely within the context of product or market driven factors with inadequate focus on psychological exploration. The present study emphasizes on the role of an individual with underlying personality trait of impulse buying tendency being the focal point of the planned investigation. It uses the knowledge of impulse buying tendency and its contextual indicators as an effective taxonomical tool to profile the retail consumers’ psychologically and capture their demographic diversity. The analysis identifies and profiles three distinct impulse buying consumer segments: proactive impulsive, hesitant-hedonist and pragmatic-rationalist; thus providing manufacturers and retailers an effective marketing tool to address different consumer groups.     

自激响应和起振条件

本文以ＣＲ桥式振荡器为例,说明不稳定网络自激响应的一般形式为复频率波ｅｘｐ。正弦振荡和脉冲边沿都是自激复频率波的特定情形。并且说明,正弦振荡器在起上位没有平衡,满足相位和幅值平衡条件的网络,有时也不能建立正弦振荡,而是表现为自激翻转。     

民营对外贸易对经济增长的影响分析——以江苏省为例

本文利用1995-2005年的数据,对江苏省民营对外贸易与经济增长的关系进行了实证研究。研究结果表明,民营对外贸易与经济增长存在长期协整关系,出口与经济增长具有双向格兰杰因果关系。进口在滞后一段时间后有利于经济增长。但民营对外贸易由于所占比例偏小,无法对经济增长产生根本性的影响。     

Other‐Centered Behavior and The Dialectics of Self and Other

The social sciences in general and consumer research in particular have been detrimentally hampered by the presumption of self‐interest as an exclusive foundation of human behavior. As a result, conduct that fails to conform to the self‐interest paradigm has often been ignored, or worse, grossly twisted to fit the dominant categorizations. This article attempts to revisit the self‐interest assumption and renegotiate the subsequent interpretations of other‐centered behavior. An open dialogue concerning these pressing issues involves investigating the fundamental conceptions of self, other, and identity. Such a discussion enables a critical review of existing consumer research of other‐centered behavior and invites new lines of consumer research. More important, it compels one to openly consider the place of self/other relationship in contemporary consumer culture(s).     

Estimation of product category sales responsiveness to allocated shelf space

A retail chain manager must draw on experience based on data available from his points of sale to diagnose space misallocations in stores and to make recommendations. This paper presents an empirical estimate of shelf space elasticities from a variety store chain database at product category level with a share of space vs. share of sales econometric model. It suggests that external influences could explain space elasticity differences. Results show that space elasticities increase with the impulse buying rate of the product category and do not depend on the type of store.     

Cultural influences on consumer satisfaction with impulse and planned purchase decisions

This study examines factors thought to influence consumers' planned and impulse purchase decisions including subjective culture (individualist or collectivist consumers) and the presence of another person at the time of purchase. Data was collected in four countries — the USA, Australia, Singapore, and Malaysia. The results indicate that overall, consumers are differentially influenced by others in planned and impulse purchase situations, even after controlling for price. These differential influences can be explained by culture. Compared to more individualist consumers, more collectivist consumers are likely to be more satisfied with an impulse purchase when another person is present at the time of purchase.