QFⅡ投资策略研究——次债危机前后对比研究

通过建立投资策略衡量模型,从惯性交易策略和反转交易策略的角度对全球次债危机前后我国证券市场上合格境外机构投资者的交易策略选择进行了实证检验,并对实证结果作了比较分析.研究发现QFⅡ的投资策略并不是一成不变的,在次债危机前后投资策略发生了转变,危机前总体上都采取了惯性交易策略,而危机后倾向于反转交易策略.     

从信息不对称角度看境外机构投资者可能带来的负面影响

实行境外机构投资者制度是我国谨慎对外开放证券市场的重要步骤之一。但如果考虑到信息不对称的问题,则境外机构投资者可能产生的负面影响也是不容忽视的。主要是因为:首先,由于投资者与机构投资者之间、机构投资者与上市公司之间存在双重委托代理关系,结果可能导致机构投资者行为的非理性化。其次,由于新兴市场国家的金融市场还很不完善,境外机构投资者因存在着信息不对称而难于发挥其对新兴市场的积极作用。所以境外机构投资者的进入未必能促进新兴市场经济的增长和资源的有效配置;境外机构投资者的某些交易策略可能影响新兴市场国家证券市场的稳定。为此,就如何进一步完善我国的境外机构投资者制度,更好地发挥境外机构投资者对我国证券市场及经济发展的积极作用提出若干政策建议。     

异质机构、企业性质与关联交易

基于2007-2009年3618家A股上市公司数据,本文从关联交易密度和关联交易频率两个维度对机构持股、企业性质和关联交易之间的关系进行了实证研究。结果发现：机构持股对企业关联交易的抑制作用并不显著,这种不显著性主要归因于证券投资基金;不同性质的机构对企业关联交易的抑制作用不同,其中证券投资基金对企业关联交易基本不存在抑制作用,而险资和合格的境外机构投资者则相反;企业性质对异质机构和关联交易间的关系有显著的调节作用,民营上市公司中机构投资者的抑制作用要强于国有上市公司。     

机构投资者、内幕交易与投资者保护——来自中国上市公司资产注入的证据

机构投资者在资本市场中承担何种的角色一直是被广泛关注的问题。本文用分笔高频交易数据库中分离出机构投资者交易记录的方法,对机构投资者参与内幕交易和管理层激励对其影响的情况进行了实证检验,给出了机构投资者参与内幕交易的直接证据,探讨了我国特殊管理层激励状况对其与机构投资者合谋内幕交易的影响,并计算了投资者因为机构投资者内幕交易而受到的重大损害,指出证券监管部门必须对机构投资者进行强有力的监管。     

基于机构投资者资金流向的知情交易行为研究

本文利用EKOP模型,从机构投资者资金流向的角度,对上市公司在信息公告前后知情交易行为进行了研究.实证结果表明:知情交易行为在我国上市公司信息公告期间普遍存在,在信息公告前期最为严重.机构投资者资金流向的变化对知情交易概率具有显著的影响,超额收益与机构投资者资金流向存在着显著的正相关关系.机构投资者资金流向对知情交易概率和超额收益都存在Granger因果关系,揭示了机构投资者是知情交易行为主要的参与者和受益者.     

中国股市机构投资者多账户交易行为研究

多账户交易行为是中国机构投资者的典型特征,是中国股票市场的特有现象。限于交易数据的可获得性,相关研究较少。本文提出了一种从交易数据中将机构投资者的交易记录分离出来的方法。据此,本文分析了机构投资者证券账户与资金账户的对应关系,证实了多账户交易行为的存在,发现采用多账户交易的机构投资者具有集中投资、日内多次交易、利用不同证券账户进行建仓、对敲、拉升股价、出货等基本特征。根据实证研究的结果并结合实例,本文揭示了机构投资者多账户交易的动机是隐蔽交易、拉升股价和申购新股。     

合格境外机构投资者对企业创新投入的影响研究——基于融资约束和环境不确定性视角

创新是企业生存和发展的决定性要素,由于研发活动的特殊性质,资金供求双方信息不对称和代理问题会随之产生,而解决此类问题的重要手段之一是发展合格境外机构投资者。基于2007-2019年中国沪深A股上市公司数据,研究合格境外机构投资者与企业创新投入之间关系,实证结果显示：合格境外机构投资者持股以及持股制衡度提升均可促进企业创新投入;在外部环境动荡的现实背景下,引入环境不确定性水平作为调节变量,发现环境不确定性增强会抑制合格境外机构投资者对企业创新投入的促进作用;进一步研究合格境外机构投资者促进企业创新投入的内在机理,发现合格境外机构投资者可以通过缓解企业的融资约束进而增加企业创新投入。因此,应吸引和鼓励合格境外机构投资者对企业进行长期投资,便利投资者投资运作,使其更有动力参与公司治理,促进资本市场健康发展。     

境外投资者持股稳定性与股价波动风险——基于陆股通日频持仓数据的研究

本文以2016-2021年陆股通上市公司为样本，按照陆股通资金换手率将境外投资者分为长期投资者与短期机会主义者，探究境外投资者持股稳定性如何影响股价波动风险。研究发现，陆股通资金持股稳定性越高，股价异质性风险和股价暴涨暴跌风险越低。异质性研究发现，在机构投资者持股比例高、股权集中度高、分析师跟踪数量多的样本中，陆股通资金持股稳定性对股价波动风险的影响程度更大。在稳健性检验中，采用沪股通开通作为准自然实验，发现境外投资者持股稳定性越高，股价波动风险越低的结论依然显著。结论表明短期机会主义境外投资者交易加剧了市场波动，而长期境外机构投资者发挥了稳定市场的作用。     

论机构投资者参与公司治理

在研究上市公司治理结构和经营绩效时,机构投资者的作用越来越受到重视。通过对上市公司2000-2002年数据的实证分析得出,境外机构投资者对企业的盈利水平有显著的正向影响,中国的证券市场应以引入QFII为契机,大力培育机构投资者,促进公司治理的优化和企业绩效的提高。     

证券分析师、内幕消息与资本市场效率-基于中国A股股价中公司特质信息含量的经验证据

本文拓展了RodriguezandSbuelz(2006)模型,引入稳健性偏好来研究中国股市的惯性投资策略和对冲投资策略.稳健性投资者对惯性投资策略反应不足,部分执行反转投资策略,从而印证了实证研究所发现的中国股市在中短期内惯性效应夹杂着反转效应的情况;稳健性投资者对对冲投资策略反应过度,并且随着投资周期的变长,其与一般投资者的对冲投资策略差异拉大;风险规避系数大和存在稳健性偏好的投资者能够把投资策略控制在合理的区间内.     

John Stuart Mill's Theory Of Justice

John Stuart Mill has traditionally been portrayed as self-contradictory and failing to construct a unified social theory. Recent scholarship, however, has challenged this view, finding Mill's work to be creatively synthetic in bridging the antinomies inherent in liberal democratic thought. This revisionist interpretation of Mill is advanced by an understanding of his theory of justice and its role in shaping his policy positions on issues such as welfare, education, voting rights, property rights, taxation, government intervention, and the future of capitalism.     

A Rich Vein for “Reality Mining”北大核心CSSCISSCI

Arik Hesseldahl In the aftermath of the September 11 attacks, U.S. officials quickly turned their attention to other potential targets, including California's Golden Gate Bridge. What would happen if terrorists took down the bridge between San Francisco and Marin County? How much of the region would be affected and for how long?     

John Stuart Mill's Theories of Wealth and Income Distribution

Although he was much influenced by David Ricardo when he wrote the classical part of his Principles , John Stuart Mill was not a Ricardian when he penned his theories of wealth and distribution. They are based on a triple foundation. First, a belief that economics is a moral discipline. Second a theory of custom-driven human behavior. Third, an empirically formed conviction that the institutions of state, education and business cooperate to structure the distribution of income. On the basis of these presuppositions, Mill formulated 1) an institutional theory of the formation of human and non-human wealth and 2) an even more institutional theory of distribution demonstrating how the aforementioned institutions malignantly skew the distribution of income to the advantage of the propertied classes and to the extreme disadvantage of the working class. As a social economist, Mill recommended institutional reforms designed to eradicate the poverty of the working class.     

中国养活自己能力的长期预测:技术和政策分析

中国拥有世界五分之一强的人口 ,收入又在迅速增长。因此 ,国际上很自然地会考虑或推测她在今后的几十年是否有能力养活自己。中国的人口预计将从 2 0 0 0年的 1 2 8亿增长到 2 0 2 0年的 1 4 6亿 ,和 2 0 3 0年的 1 4 9亿。与此同时 ,人均收入的增长将导致对家畜和鱼类产品更大的需求 ,因而对饲料的需求也将有很大的增长     

Toward a Phylogenetic Reconstruction of Organizational Life

Synopsis Classification is an important activity that facilitates theory development in many academic disciplines. Scholars in fields such as organizational science, management science and economics and have long recognized that classification offers an approach for ordering and understanding the diversity of organizational taxa (groups of one or more similar organizational entities). However, even the most prominent organizational classifications have limited utility, as they tend to be shaped by a specific research bias, inadequate units of analysis and a standard neoclassical economic view that does not naturally accommodate the disequilibrium dynamics of modern competition. The result is a relatively large number of individual and unconnected organizational classifications, which tend to ignore the processes of change responsible for organizational diversity. Collectively they fail to provide any sort of universal system for ordering, compiling and presenting knowledge on organizational diversity. This paper has two purposes. First, it reviews the general status of the major theoretical approaches to biological and organizational classification and compares the methods and resulting classifications derived from each approach. Definitions of key terms and a discussion on the three principal schools of biological classification (evolutionary systematics, phenetics and cladistics) are included in this review. Second, this paper aims to encourage critical thinking and debate about the use of the cladistic classification approach for inferring and representing the historical relationships underpinning organizational diversity. This involves examining the feasibility of applying the logic of common ancestry to populations of organizations. Consequently, this paper is exploratory and preparatory in style, with illustrations and assertions concerning the study and classification of organizational diversity.     

Nonlinearity in Stock Exchange Markets: The Case of Bist 100 Indices

In this paper,using data for the Bist 100 index,we investigate the presence of nonlinearities by employing several nonlinearity tests.The Brock,Dechert,and Sche...     

Solidified Branding Function: How the Urban Brand Affects a Small Town’s Development? Case Study of Wangqingtuo,Tianjin, China

Chinese small towns are usually developed with single core industry,and the urban brand is the identity of a town that formed with the development of its indust...     

Information infrastructure: Who builds broadband networks?

This paper examines the essential difference between the U.S. and Japan, when one considers information infrastructure. There are seven perception gaps between the U.S. and Japan concerning Information Infrastructure policies. These gaps must be understood in order to compare the countries' governmental policies in this area. In looking at the present circumstances, the essential question to answer concerns who is to build, own and operate the network(s) of the infrastructure. Liberalization is certain to be a central factor in the ongoing telecommunications debates. Now that customers have had a taste of the liberalized market-place, the movement toward more open markets will be difficult to stop. When considering options, it is necessary to pay close attention to standardized network access and the increasingly important role software plays. These issues are causing us to take a new approach to the traditional role played by regulators. They also force a closer look at the appropriate structure of utility companies. This paper addresses the above issues in hopes of stimulating dialog on the new telecommunications infrastructure paradigm.     

海岛地区产业演替及资源基础分析--以舟山群岛为例

改革开放以来,舟山市产业构成发生了显著变化,其经济发展过程可以划分为三个阶段。1992年前,是以产业结构渔业占绝对地位的单一结构阶段;1993—1998年,以旅游业为主的第三产业快速发展阶段;上世纪末以来,又进入了新一轮的经济发展时期,即工业产值比重快速增加阶段。根据海岛的自然资源基础和特点,在新世纪的经济发展过程中,舟山市应定位为生态型的港口旅游城市。以港口及临港工业为主导,以海岛旅游和海洋经济为特色,大力发展第二产业和第三产业。海岛地区的主导产业应体现海岛资源优势及区位优势,以集群性环保型产业为主。同时由于海岛地区淡水资源缺乏,主导产业也应着重选择低耗水型产业。