价格变动对市场份额的影响分析--需求弹性测量系统模型与应用实例

一、背景简介当一个行业出现激烈竞争的时候,为了争夺消费者,各厂家是否就必须采用降价的营销方法?降价对消费者的吸引力度到底有多大?现在的市场份额较大,降价是否会影响目前拥有的市场份额?当本产品价格进行调整的时候,最受益的竞争对手是谁?打击的又是谁?我们怎样才能够非常     

IMF救援方案的宏观经济绩效实证

“IMF的救援方案是否有效”是IMF改革,甚至是整个国际金融架构改革的核心问题之一。本文针对1982-2002年间,61个代表性发展中国家所接受的IMF附加一揽子条件的救援方案,对受援国宏观经济的影响从静态和动态两方面进行了较为全面的实证。实证结果表明:从静态来看,IMF救援方案在很大程度上还是一种短期外部失衡的调整方案,这种调整并没有对经济增长有明显的促进作用,对此分方案类型和分方案完成情况的实证结果基本一致;从动态来看,接受方案也并没有给受援国带来宏观经济和国际收支的长期稳定。     

Learning design and technology through social networks for high school students in China

The subject of design and technology was introduced to the curriculum for high schools in China 10 years ago. However, the teaching and learning of this subject have become difficult for both teachers and students because there is a lack of qualified teachers with design background to deliver this subject in a way to stimulate the learning interests of the students. This paper presents a research that is aimed at improving this situation by integrating the teaching and learning of design and technology within a computational environment as part of social networks sites. The purpose is to enable the collaboration among the students and interaction between teachers and students. In this research, a series of investigations were conducted, by following through several taught subjects in design and technology in prominent high schools in China. Based on these investigations, a theoretical framework for web-based design learning and teaching system in the style of social networking is developed, implemented and tested, emphasizing three features of design: innovation, collaboration, and interaction. This framework has been tested among high school students and teachers in a high school in Nanjing. It identified and validated necessary techniques and design features required to make an education-related social networking site effective and affective for the students and teachers. The results of this research indicated that social networking sites have significantly positive values in design education, especially for the collaboration and interaction on the subject of design and technology.     

The Optimal Write-Down Coefficients in a Percentage for a Catastrophe Bond

Catastrophe bonds, also known as CAT bonds, are insurance-linked securities that help to transfer catastrophe risks from insurance industry to bond holders. When the aggregate catastrophe loss exceeds a specified amount by the maturity, the CAT bond is triggered and the future bond payments are reduced. This article first presents a general pricing formula for a CAT bond with coupon payments, which can be adapted to various assumptions for a catastrophe loss process. Next, it gives formulas for the optimal write-down coefficients in a percentage, implemented by Monte Carlo simulations, which maximize two measurements of risk reduction, hedge effectiveness rate (HER) and hedge effectiveness (HE), respectively, and examines how the optimal write-down coefficients in a percentage help reinsurance or insurance companies to mitigate extreme catastrophe losses. Last, it demonstrates how the number of coupon payments, loss share, retention level, strike price, maturity, frequency, and severity parameters of the catastrophe loss process and different interest rate models affect the optimal write-down coefficients in a percentage with numerical examples for illustrations.     

The Investment Performance of Art in Mainland China

This article investigates price determinants and investment performance for paintings from mainland China using hedonic regression analysis applied to a new dataset from over 190,000 auction transactions. The price index obtained indicates that from 2000 to 2015, the average annual appreciation in value of Chinese art was 8.42% in real USD. Compared with American artwork, global artwork, and traditional financial assets, Chinese art possesses a comparatively better risk and return profile and a low correlation with other assets. Finally, regarding the masterpiece effect, the conclusion is that highly priced Chinese art does not underperform the market.     

不同负债水平公司的资本结构调整速度相同吗?——基于中国上市公司的经验证据

本文利用中国上市公司2003～2010年的数据,采用差分广义矩估计以及连接函数为logit的广义线性模型拟最大似然估计两种方法对资本结构的调整速度与不同资产负债率水平之间的关系进行了探讨。本文的研究结果表明:较高负债率水平的公司有着相对较快的调整速度,并且其公司规模也较大;与此相反,低水平负债率的公司不仅调整速度较慢,而且公司规模较小。同时,本文的研究还发现高负债率的公司对于资本结构的调整主要是通过债务行为来达到的。     

浅析公允价值在我国的运用情况

公允价值由于其高度的形相关性,越来越受到投资者和债权人的重视,新企业会计准则的颁布也说明了这一点。文章从公允价值的内涵入手,分析了公允价值的优越性以及在我国运用公允价值计量的不利因素,最后对在我国推行公允价值提出几点建议。     

新中国成立初期城市私有住宅公有化过程及其启示

当前,我国城市住宅短缺问题突出,政府城市住宅政策尚不完善。有鉴于此,回顾和总结新中国成立初期的城市住房政策就颇有意义。在新中国成立初期,我国同样面临城市住宅短缺的问题。当时,私有住宅占城市住宅总量的绝大多数。中国政府采取两步走的公有化策略,公私并存和社会主义改造。通过对城市住宅的公有化,政府手中掌握了大量的城市住宅资源,有利于管理和分配。但在公有化过程中私人房主的利益一而再地被忽视和损害。回看新中国成立初期的那段历史,可以为我们今天城市住宅制度的制定提供一些启示,一是,住宅制度的制定需遵循经济规律;二是,满足百姓的住宅需求是住宅制度的根本目标。     

金融危机下对金融工具的公允价值计量思考

金融风暴席卷全球,从美洲、欧洲到亚洲,无一不受到波及.事实证明,此次风暴来袭,首当其冲的就是金融资产,其市场价值应声而落,惨不忍睹.为此,各国政府积极应对,纷纷出台了一些应急办法,以减缓危机带来的金融资产账面大幅缩水的局面,其中就包括修改"公允价值"的计价规则.     

高职高专英语分级教学改革调查分析

针对目前高职高专学生入学时的英语水平参差不齐的客观情况，根据《高职高专教育英语课程教学基本要求》的精神和因材施教的原则以及语言输入理论，对目前高职高专的英语教学组织形式进行调查，结果发现英语基础差距较大，英语教材难度不够，学生收获不大。因此根据学生的不同程度进行分级教学十分．必要。笔者认为这是提高高职高专英语教学质量和教学效果的可行之路。同时对分级教学的优缺点进行了分析。