• 详情 The Volatility Risk Premium Embedded in Currency Options
    This study employs a non-parametric approach to investigate the volatility risk premium in the over-the-counter currency option market. Using a large database of daily quotes on delta neutral straddle in four major currencies ? the British Pound, the Euro, the Japanese Yen, and the Swiss Franc ? we find that volatility risk is priced in all four currencies across different option maturities and the volatility risk premium is negative. The volatility risk premium has a term structure where the premium decreases in maturity. We also find evidence that jump risk may be priced in the currency option market.
  • 详情 金融交易市场价格波动数值预测研究发展战略的思考
    金融安全关系到国家经济发展、社会稳定、国防巩固,是国家安全的重要组成内容。在当前国际经济、金融一体化发展趋势中,金融交易市场安全的重要性尤为突出。特别是不断出现的金融风暴的影响和日益显著的金融交易市场波动的全球化趋势已使预测并控制大的金融风险成为各国政府和金融机构严重关注的问题,并且这个问题正在变得日益严峻。 目前,金融市场交易系统提供的各种高频数据与物理学研究体系在时空结构上具有相当程度的严格对称性,可反应出系统的演化过程和行为特征,并且数值模拟技术已经为金融市场数值预测研究提供了前所未有的技术基础,因此现在已经进入了探索和构造金融市场物理模型并用高频金融数据检验这些模型的模式辩识与市场演化趋势跟踪能力的时代。 尽管金融交易市场价格波动预测是一个举世公认的国际性科学难题,但在强化各种减轻金融交易市场风险问题措施的同时,仍须大力推进金融交易市场数值预测研究。为此,需要打破长期徘徊在以线性的、完全理性的均衡范式的现代(主流)金融学为基础的经验性预测局面,把注意力尽快转向研究以非线性动力学为基础的金融交易市场价格波动数值预测。 以金融交易市场数值预测为目标的非线性金融市场动力学的理论、模拟试验和实际观测,数据同化和计算软件的开发应成为今后研究的重点。现在的问题是,需要我们积极借助数值分析天气预报、物理建模地震预测和航位推算弹道导弹等学科领域的经验,强化多学科,多部门的组织协调,尽早在我国股市和期市开展金融交易市场价格波动动力学数值预测的科学试验。金融交易市场价格波动数值预测研究必将极大地促进我国金融市场基础研究和金融风险预警系统的进一步发展。
  • 详情 新旧会计制度坏帐核算标准对赊销企业的影响
    在最新的企业会计准则中,对坏帐核算的规定与旧的准则有了很大的变化.本文通过对新旧制度的对比 探讨了会计制度的变化对赊销企业的影响.
  • 详情 基金持有人放弃配售行为的实证研究
    实证结果显示,基金扩募时,持有人配售部分的上市首日超额回报率显著为正,平均高达约20%,然而部分持有人却选择放弃配售,其动机令人费解。 我们发现,基金持有人放弃配售的倾向程度,主要受到基金经由扩募所能获得的规模经济效益、扩募前净值相对于配售价格的大小、预期基金将面临的竞争压力等因素的影响。此外,并没有证据显示对基金管理人表现的预期合理地反映在基金持有人接受配售的程度上。
  • 详情 金融交易市场发现孤子存在的意义――橡胶、沪铜实时模拟同步交易实验报告
    本文基于复杂系统理论,应用非Abel定域规范变换方程和鞅与不动点的数值分析原理,以期货橡胶、沪铜实时模拟同步交易实验来直接模拟和验证金融交易市场孤子存在的事实。金融交易市场孤子的发现,表明金融交易市场(期货、股票)有一种新的物质与能量存在形式。更为深刻的意义是,自爱因斯坦统一场论以来,相互作用统一理论思想的令人震惊的延拓,可能预示着物理学以外的经济与社会领域新的科学范式。
  • 详情 Profitability of Momentum Strategies in Chinese Stock Market
    Abstract: China is the most important emerging market awaiting for investigation by both academics and industrials. We study the profitability of long position in winner-based threshold momentum strategies after accounting for the transaction cost. We find substantial profits (double to octuple the money every year) in daily threshold trading strategies when trading cost is not accounted. However, at very low level of trading cost, say 0.2%, all profits disappear. We employ a model that rebalance the portfolio carefully to save the transaction cost, but the trading rules still fail to profit at a reasonable level of trading cost. Thus, the momentum profits may not compete with the trading cost.
  • 详情 传统指数、E-VaR指数―深沪两市开放式基金与封闭式基金的绩效评估
    从1998年开始建立封闭式基金已有5年的时间,基金的绩效也已开始引起人们的关注。本文在前人的基础上进一步选择深沪两市共19只封闭式基金,对他们的绩效水平分别进行检验,并选取六只开放式基金的绩效水平进行比较。本文除采用传统的指数进行评估外,同时还引入了E-VaR模型。
  • 详情 贵州茅台酒股份有限公司偿债前景展望
    我国正在从“投资型经济”向“消费型经济”转变,消费的增长已成为拉动经济增长的重要因素之一。随着经济的增长和居民收入增加,消费结构将向发展型、享受型升级,“奢侈品”将成为消费增长的主要动力之一。茅台公司是白酒酿造类上市公司中唯一家只生产高档白酒的企业,“消费升级”增加了对高档白酒需求,对公司增加产销量、提高市场占有率有较大的促进作用。该公司近几年销售额连续上升,反映了“消费升级”对公司发展的促进作用。同时,公司在白酒酿造行业有全国性的品牌优势,“茅台”品牌是国内食品行业著名品牌,是该公司维持较高毛利率水平的重要保证,对未来的盈利和现金流量形成较强的保障。 在生产经营中,茅台公司对股东关联公司的依赖性正在增加,使该公司未来的盈利预测具有一定的不确定性。根据公司产品生产工艺特点,当年生产的自制半成品,要经过三年以上存放,目前公司的自制半成品不足以支持公司扩大生产的需要。因此,随着公司销量的增长,向集团购买老酒的数量将不断增加。其次,从原材料成本不断上升,与公司近两平均生产成本大幅下降的矛盾来看,该公司可能存在调节利润的现象。最后,该公司以较低的价格向下属销售公司销售白酒,以减少缴纳消费税,税务筹划影响公司净利润的30%左右。 该公司近几年表现出较低的负债水平和很高的偿债能力。公司的资产负债率只有33.84%,在行业内同类上市公司中处于较低的水平,“预收账款”占总负债的48%,金额达10.36亿元,说明经销商对公司的信用情况十分有信心。公司未来合计资本支出约15亿元,预计公司将以帐上约28亿元货币资金及第年约9亿元经营现金流入作为支持。综合该公司的经营现金流量和负债率水平,其举债压力较小,而偿债能力很强。
  • 详情 Rational Panics, Liquidity Black Holes And Stock Market Crashes: Lessons From The State-Sh
    A government policy aimed at the reduction of state shares in state-owned enterprises (SOE) triggered a crash in the Chinese stock market. The sustained depression and spillover even after the policy adjustments were over constitute a puzzle---the so called "state-share paradox". The empirical study finds evidence in two dimensions. First, a regime switching model with an absorbing state suggests that government policy switches the regime to liquidity black holes. Second, there is no evidence of flight-to-liquidity during the crash, suggesting to model the crash as an aggregate phenomenon of the whole market. To carefully match the evidence, a theoretical model is set up within the framework of market microstructure. The model shows that the Chinese stock market has distinctive features of liquidity production and price discovery. The irregularities generate an inverted-S demand curve, gives rise to potential liquidity black holes, and are key features to explain the state-share paradox. This study contributes a rational panics hypothesis to the literature. The rational panics hypothesis is neither a herding model with or without behavioral assumptions, nor a standard rational expectation model under the asymmetric information framework. It is based on homogeneous agents with incomplete information, and is consistent with the evidence of absorbing regime switching and the recent literature on state-dependent preference. Our findings have larger implications for theoretical modeling and policy design.
  • 详情 中国证券市场三因素模型实证研究
    摘要:Fama和French(1993,1996)的因素模型比资本资产定价模型更好地描述了横截面股票收益率的变动,我们采用深市最新的股票数据(1996.01-2003.12)对Fama和French(1993,1996)的三因素模型在我国证券市场上进行了检验。在国内我们首次论证检验了三因素模型在我国证券市场是成立的,而且我们对三因素模型回归系数的稳定性和模型的预测能力进行了实证研究。我们检验了我国证券市场上是否有“新年效应”现象,得到我国证券市场的低账面市场比公司(除小规模公司)具有的“一月效应”,但显著性不是很强,m/M组合具有“二月效应”。我们的研究结果为投资组合选择、预测、决策及其业绩评价提供了一定的依据,具有理论和实际应用参考价值。 Research and Test of The three factor-factor Model in Chinese Stock Market Deng Changrong Ma Yongkai (Management College, University of Electronic Science and Technology of China,Chengdu,Sichuan 610054) Abstract: The three factor-factor Model, established by Fama and French, is considered to describe cross-sectional stock returns better than CAPM. Based on the newest 96 month stock data from 01 1996 to 12 2003, we research and test the model. We found the model is suitable for Chinese Stock Market. Then we research the coefficient stability and the forecast ability of the model. At the same time, we test the so-called ‘new-year effect’. We drew the conclusions that the m/L and b/L portfolios have the ‘January effect’ and the m/M portfolio has the ‘February effect’. Our researches have important theoretical and practical valuation, provides some condition for the selection、forecast、and decision of investment portfolios.