恒生指数、B股指数和A股指数过度反应后短期行为分析

本文通过平均收益率计算方法 ,系统地比较了恒生指数、B股指数和A股指数的短期过度反应行为及其后的累积超额收益率变化特征。本文的研究认为 :由于国内股市涨跌停板制度的实施 ,其波动程度已经小于香港股市。国内A、B股市场在发生正向激烈变化后 ,次日往往存在惯性上冲 ,但在第 2到第 3天存在过度反应现象 ;第 5天到第 10天存在明显的反抽 ,即与事件日方向相同的变化。国内股市在发生大幅下跌之后 ,无论哪个市场都有惯性的下跌动量存在 ,A、B股市场的异常波动存在一定程度的“隔年现象”。本文进一步的回归模拟发现 ,在上涨期间 ,香港股市发生异常波动后的第 1天、第 5天和第 10天的累积超额收益率和异常波动的幅度相关 ,B股和A股市场的第 1天和第 5天的累积超额收益率和异常波动幅度相关。而在下跌过程中 ,三个市场都无一例外的和异常波动的幅度强相关     

我国B股市场的投资机遇与风险

B股市场的未来前景 B股是在我国境内发行的、以人民币标明流通面值、以外币认购和交易的特种股票。1992年2月21日，我国第一只B股股票真空电子B在上海证券交易所挂牌交易。2月28日，深南玻B也在深圳证券交易所上市。到1997年，在上海、深圳两个交易所上市的B股股票达到101家。在20世纪90年代初，由于我国外汇资金短缺，在人民币不能自由兑换的情况下建立B股市场是非常有效的筹集外资的方式。     

中国的金融周期波动及其宏观经济效应的时变特征研究

本文利用主成分分析方法计算出中国的金融形势指数,以此考察了中国金融周期的波动特征,并进一步运用时变参数向量自回归模型分析中国金融周期波动对宏观经济的时变影响及其非对称性特征。研究结果表明,中国金融周期波动先行于宏观经济景气波动,周期长度大致为3年,且存在长扩张短收缩的非对称性特征;金融冲击的“产出效应”不如“价格效应”明显,金融形势好转所产生的加速效应比金融形势恶化所带来的负面影响更为显著。     

“B转H”:引发香港投资猜想

除了"B股转H股",内地企业赴港上市也有望在2013年提速。对资本市场而言,岁末年初最振奋的事件非"B股转H股"莫属。2012年12月19日,中国国际海运集装箱集团(000039.SZ,02039.HK,简称"中集集团")成为中国证券史上首家B转H股顺利上市的企业,投资者手中持有的所有中集B都转换成代码为02039.HK的H股。这一转换为B股投资者带     

我国股票市场沪深两市波动性关系研究

本文首先选用上证综合指数和深证综合指数1997年7月1日至2007年6月30日期间的统计数据进行了基本的统计分析.在此基础上,分别利用GRANGER因果检验模型、信息吸收模型以及二元VAR-EGARCH模型对我国股票市场沪深两市波动性关系进行了实证研究,得到了较为满意的结果.研究结果表明:沪深两个市场之间相互引导;信息在两个市场间迅速地传递;沪深两市双向波动溢出,并都体现出波动的集群性和非对称性特征.     

从经济周期波动观96年房地产市场走势

从经济周期波动观９６年房地产市场走势梁运斌预测房地产市场走势既是必要的，又是十分困难的，尤其是对于蹒跚迈步的中国房地产业来讲，尚未表现出明显的周期性友展现象，因此还夫法根据产业自身周期性波动趋势来预测其走势。另外由于市场体系的非完善性，最为突出的是房...     

分割市场中的系统风险的长期趋势与传递效应

本文建立在A，B股市场的系统性风险(所占比例)的度量上，讨论中国证券市场分割的特征。运用协整和格兰杰因果性检验，研究沪深A，B股四个系统性风险的时间序列，指出沪深的两个A股市场之间有长期均衡趋势，沪深的两个B股市场之间也有长期均衡趋势，表明就整体而言，A股与B股的市场仍然具有分割的市场特征；其次，指出系统性风险的传递方向在A股是沪市到深市，在B股是深市到沪市，表明在市场分割的情况下，A股与B股具有不同的系统风险的传递途径；最后，在沪市的A，B股之间系统风险互为因果，在深市的A，B股之间系统风险也互为因果，表明地域市场对分割的整合作用。     

规模扩张、盈余变异程度与盈余持续性

以我国2007-2014年非金融类A股上市公司为样本,研究发现我国上市公司盈余大幅波动的现象较为普遍,盈余波动影响盈余持续性。进一步通过划分时间窗口、计算盈余变异系数,研究发现过度波动将导致现金盈余的持续性被破坏,在盈余波动较小的时间窗口中应计盈余与现金盈余的持续性没有表现出显著差异。研究表明企业规模大幅度变动是影响同一时间窗口中盈余波动幅度的重要因素:相比行业的平均水平而言,企业在某个年度规模的变化幅度过大或过小都将导致盈余波动加大;当企业规模在某个时间窗口中不存在较大变化时,在该时间窗口前出现的融资可以减弱该时间窗口中的盈余波动。     

股市收益波动的非对称性研究

随着我国股票市场的逐步发展及证券市场监管体制的逐步完善,股票市场收益波动所呈现的非对称性效应是否会发生逆转引人关注。本文运用不同的GARCH类条件异方差模型(EGARCH、TARCH、PARCH以及非对称CARCH模型),选取1998年1月5日至2006年11月6日上证综指的日收盘价格指数数据,分析和验证了股票收益波动的非对称性效应。结果表明,上海股市股票收益波动仍然具有非对称性,即利空消息对收益波动的冲击效应大于同等程度的利好消息,从而验证了非对称效应的不可逆转性。     

中国股票市场波动性实证研究

利用GARCH-M和EGARCH模型实证分析了中国沪深股票市场的波动性,研究结果表明沪深股票市场波动持续的时间长,波动存在显著的非对称性,为即将推出的沪深300股票指数期货提供了一套有效的市场分析工具。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

Ansätze und Ergebnisse anglo-amerikanischer M&A-Forschung

Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.     

Introduction of New Technology with a Sound Transition of the Input-Output Structure

We examine the general equilibrium repercussions associated with the introduction of new technologies, using the generalized Leontief system that allows technological substitutions. We show that an untested introduction of cost-increasing technologies in any industry may result in creating a non-productive technological structure that does not satisfy the Hawkins-Simon condition, following the autonomous dynamic adjustment process with structural transitions in the economic system. Therefore, we propose a practicable control scheme of introducing cost-increasing technologies that strictly avoids the creation of non-productive structures in all periods of structural transition, using the available information on the ex ante technological structure.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。