我国开放式基金经理选股及择时能力的实证研究

开放式基金现已成为我国证券市场上最重要的投资机构和我国基金市场的主流。开放式基金的选股和择时能力是其获得超额收益的重要因素,本文选取17只基金作为样本并运用T-M和H-M模型对其选股能力和择时能力进行实证分析,就选股能力而言,均显示少数样本基金具备选股能力。就择时能力而言,均显示所有的样本基金均不具备择时能力。     

我国开放式基金经理选股及择时能力的实证研究

开放式基金现已成为我国证券市场上最重要的投资机构和我国基金市场的主流。开放式基金的选股和择时能力是其获得超额收益的重要因素,本文选取17只基金作为样本并运用T-M和H-M模型对其选股能力和择时能力进行实证分析,就选股能力而言,均显示少数样本基金具备选股能力。就择时能力而言,均显示所有的样本基金均不具备择时能力。     

有关证券投资基金经理择时能力的探讨

随着基金规模的不断扩大,基金经理的能力得到更多的关注。基金经理进行证券组合投资时,主要包括选股能力和择时能力,关于这两个能力的研究是关于市场是否有效的重要问题。本文着重于基金择时能力的探讨,若实证表明择时能力显著,说明基金确实是能战胜市场为投资者带来收益的。结果表明:采取不同的数据和模型将得出有关择时能力是否显著的不同结论。     

我国开放式基金绩效及选股和择时能力研究

近年来,开放式基金逐渐成为我国基金市场的绝对主体。开放式基金能否取得较好的绩效受到市场的普遍关注。本文选取了资金管理规模前20位的公司,并从中随机挑选1只基金,运用詹森指数、特雷诺比率、夏普指数和信息比率等单因素模型和Fama-French三因素模型对开放式基金的绩效进行分析,并使用T-M模型、H-M模型、C-L模型对基金经理人股票选股与择时能力进行分析。结果发现:第一,我国开放式基金经理的选股能力存在时变性,在上升期具备选股能力,在下跌期不具备选股能力,而无论是在上升期还是下跌期,基金经理普遍不具备择时能力。第二,在市场上升期基金经理比较注意对风险的把控,系统性风险较小,而在下跌期基金投资组合的系统性风险明显上升,基金经理冒险意愿上升,当市场出现大幅度下跌时,其不理性行为会加剧市场的波动。本文的研究结论有利于提升投资者的风险意识和理性意识、促进外部监管部门的精准监管审查,并能够激励基金经理人提高自身风险管控的能力。     

市场波动中的中国开放式基金是否存在选股择时能力——分时段下的比较研究

本文利用分时段比较研究中国三种主要开放式基金在股市涨落中是否存在选股择时能力,以帮助投资者对其形成初步的认识。研究发现,目前的两种主要评价模型更适合在市场相对平稳时期评价中国基金的选股择时能力。当市场剧烈波动时,模型解释力较弱;基金总体仅具有极为微弱的选股能力,择时能力欠佳,且不同类型基金在市场不同波动阶段选股择时能力差异较大;市场下降期往往同时具有一定的选股和择时能力,但其他时段两种能力则具有较强的负相关性。     

我国QDII基金经理的选股择时能力研究

本文选取2009年前成立的8只QDII基金为研究样本,以2009年和2010年的周度数据为基础,采用TM和CL模型对QDII基金经理的选股能力和择时能力进行实证分析。实证结果表明,我国QDII基金经理的选股择时能力不具有持续性。2009年有较强的选股能力和择时能力,2010年有一定的选股能力,但是缺乏择时能力。进一步分析,QDII基金经理的选股择时能力的显著性都不强。     

对我国证券投资基金绩效评估的实证研究

文章利用基金业绩评价指标、基金的选股能力和基金择时能力评价指标、基金的整体风险评价指标,对选取的十只偏股型封闭式基金进行了实证研究。研究结果表明在所选样本期间里,所选基金的业绩表现都不如市场,在选股能力方面表现并不良好,在择时能力方面并不显著,且各基金的投资风格相似。     

我国证券投资基金预测能力的决定因素研究

基金预测能力是评价基金业绩的重要指标。本文利用扩展的T-M模型与H-M模型实证检验了基金的预测能力,发现有近45%的基金具有显著的选股能力,另近25%的基金具有显著的负择时能力。在基金预测能力检验的基础上,本文从基金特征、基金经理特征及基金家族特征入手探讨了影响基金预测能力的因素。通过Logit模型回归发现,基金公司规模、基金经理薪酬占总费用的比例及"自下而上"的资产配置理念对基金的选股能力具有显著的正面影响,而基金自身规模对选股能力具有负面效果。从择时能力上看,基金年限与基金经理薪酬占总费用的比例对基金的负择时具有显著"贡献",而基金公司规模对基金的负择时具有显著抑制作用。此外,没有发现基金经理特征影响基金预测能力的证据。     

我国沪深300指数基金择时和选股能力实证分析

本文运用T-M模型和H-M模型，采用2012—2013年的交易数据，对我国已上市的21只沪深300指数基金的择时选股能力进行实证分析。实证结果显示：我国沪深300指数基金经理的选股能力较差，基金经理未能给投资者带来超额收益；在择时方面，基金经理普遍具有一定的择时能力，但不具备强择时能力；基金经理的择时能力和选股能力呈强烈的负相关性。     

中国开放式基金选股和择时能力的实证分析

经过6年的发展,我国开放式基金发展迅速,截至2007年9月30日我国共有305只开放式基金,与此同时开放式基金对证券市场的影响也越来越大.开放式基金风险和收益、选股和择时能力等问题一直是国内外学者关心的一个话题.对开放式基金风险和收益、选股和择时能力的研究不仅关系到开放式基金本身的发展,也关系到投资者的切身利益.本文在收集2004年1月1日至2007年6月30日开放式基金3年半的数据基础上,应用国外成熟市场对开放式基金评价的指标,分析了中国开放式基金的选股能力和择时能力等问题,得出我国大部分开放式基金具有专家理财的特点,有一定选股能力但选时能力不是很强的结论.     

Almanac of anticipations: The age of affluence—of anticipation—of anxiety—of automation—of discontinuity—of longing—of overkill—of space exploration

With this survey of developments in the futures field since 1945, I.F. Clarke completes his present series for Futures. He makes two major points: that forecasting techniques have become essential tools in the management of change; and that nuclear weapons and ecological problems have added a moral dimension to the study of the future. In the next issue of Futures he will start a new series on the range of future-thinking in the USA, from the expectations of the first settlers to the Star Wars programme.     

社会主义所有制形式的改革、完善与共产党执政能力的提高

在中国,所有制形式的调整、改革与完善,先进生产力的发展,党的执政能力建设,是社会主义建设过程中密切结合在一起的三个不同层面的发展关系.应在相互促进和共同提高中促进社会的和谐发展,保证社会主义现代化建设战略目标的顺利实现.     

基金公司经营融资融券业务的问题审视

融资融券业务正式运营已经开展,为证券市场带来了革命性的改革,作为证券市场的一大主体,基金公司面对融资融券也迎来了新的发展方向和挑战,本文从融资融券业务的运行机制入手,分析了基金公司融资融券的新契机,并对其即将面临的问题进行审视和剖析,进而提出策略建议.     

对基层人民银行科技工作的几点建议

银监会分设后,人民银行将专司货币政策、金融稳定、金融服务三大职能。作为人民银行的分支机构,基层人民银行的工作重心也将从金融监管调整到这三大职能上来。人民银行的科技部门,就要积极运用科技手段,为人民银行履行新的职能发挥“服务、支持、促进、发展”的作用。一、围绕三大职能搭建五大平台经过“六五打基础、七五作准备、八五大发展”几个阶段后,人民银行相继实现了核算电算化、清算网络化和办公信息化。特别是近一两年来,陆续开通了大额支付系统、信贷登记咨询系统、会计四集中系统、金融信息服务网站等系统,人民银行信息化水平又…     

Properties of time-series estimates of degree of leverage measures

Empirical studies suggest that time-series regression estimates of the degrees of operating and financial leverage have a tendency to produce measures less than one. According to ex ante theory, these measures should be greater than one for firms operating above the breakeven point. There have also been suggestions that the biases in these estimates may be attributable to an underlying increase in unit sales. This work presents evidence that these counter-intuitive measures are produced by changes in the firm's operating parameters (unit price, variable cost, fixed cost and interest payments). It further suggests that attempts to control for the underlying change in unit sales substantially increase the volatility of predicted estimates.     

浅议金融机构的举证责任

金融纠纷案件是当事人以存单或进账单、对账单、存款合同、保险单、票据、证券等凭证为主要证据向人民法院提出诉讼的案件,对于不同种类金融纠纷的当事人的举证责任,我国现行的金融法律、法规及司法解释有不同的规定。由于金融机构的特殊法律地位,发生金融纠纷时存在有关当事人将最后偿付风险转移给金融机构承担的主观故意,在客观上会使金融机构难以提供相应的证据来对抗不法债权人的诉讼请求,而导致金融机构败诉。为此,对金融诉讼案件中金融机构的举证责任加以研究具有重要的实践意义。     

Summary of Results of Survey of Seminar Attendees

Abstract

The Society of Actuaries undertook a three-phase research project on mortality improvement in the three NAFTA countries: Canada, Mexico, and the U.S. Phase 1 consisted of a literature review of papers on projecting mortality levels in the future and a study of the trend in mortality improvement during this century. Phase 2 consisted of a discussion of different facets of modeling mortality rates at a seminar attended by 79 experts (actuaries, demographers, economists, and medical researchers) representing different countries. The last session of the seminar consisted of the completion of a survey by the attendees to obtain input for Phase 3, which would analyze the impact of mortality improvement on the social security system of each country. This paper summarizes the results of the survey.

The survey results illustrate the difficulty in forecasting mortality levels, because the effects of many factors that could have significant impact on mortality rates are unknown. This suggests the need for dynamic forecasting, which allows for the possibility of random shocks. A majority of the survey respondents believe that stochastic forecasting models, despite their complexity, have significant potential to add value. Respondents also believe that both historical data and cause-specific mortality forecasts are useful as input and also in validating forecasts of the aggregate levels of mortality. The challenge is to develop more sophisticated forecasting models to produce results that are relatively easy to interpret and to communicate these results to the desired audiences, including the public and policymakers.

The survey results suggest that the aggregate effect of lifestyle changes, medical advances, diseases, catastrophe, and physical environmental changes is an increase in life span. However, there is much uncertainty about the future. Respondents expect that beyond the year 2020 the mean annual rate of reduction in mortality for males age 65 and over will average about 0.58% for Canada, 0.76% for Mexico, and 0.67% for the U.S. The results for the female age 65 and over population are 0.64%, 0.83%, and 0.70%, respectively. The age 65 and over population is expected to see larger percentage reductions in mortality than the 0–14 and 15–64 populations. The reductions in male and female mortality will be ultimately the same, and the mortality levels in the three countries will ultimately converge, although differences may persist for decades.     

The Usefulness of Measures of Consistency of Discretionary Components of Accruals in the Detection of Earnings Management

Abstract:  Prior research has shown the prevalence of measurement error in models used to estimate aggregate discretionary accruals. In these models, the incremental information content of the various components of accruals is ignored. Limited prior research and data gathered from firms under Securities and Exchange Commission (SEC) litigation indicate that managers use either one or more than one component of accruals simultaneously, in a consistent way to manipulate bottom-line earnings in a given direction. I propose two measures that capture the consistency between the discretionary components of accruals and test their significance in earnings management (EM) detection in firms that have artificially added accrual manipulation and firms that were targeted by the SEC for accrual manipulation. There is evidence that this information is incrementally useful in detecting EM. This finding paves the way for improvements in the discretionary accruals measure by including consistency information from the components of aggregate accruals.     

Separation of Unit of Account from Medium of Exchange

The separation of a unit of account (UoA) from a medium of exchange (MoE) in the commodity–money system is investigated by considering explicitly a seller's choice of UoA in terms of either an MoE or a unit of metal weight. If the likelihood of debasement of an MoE and its rate are high enough, the price is posted in terms of a unit of metal weight rather than an MoE. Interestingly, this MoE–UoA separated equilibrium yields the flexible nominal price, whereas an MoE–UoA integrated equilibrium yields the sticky one. This implies the nominal price rigidity in the fiat‐money system where MoE and UoA are integrated.