• 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.
  • 详情 中国股市涨跌停机制的绩效研究
    一直以来,理论界和实务界对证券市场实施涨跌停机制的效果存在争议。本文以Kim和Rhee(1997)的研究方法为基础,结合上海股市的实际情况,从波动率溢出假设、延迟价格发现假设和交易干涉假设三个方面对上海股市涨跌停机制的绩效进行实证考察。研究结果表明,中国股市的涨跌停机制是缺乏效率的。文章的最后提出了放宽价格限制幅度和采取不对称的涨跌停机制的政策建议。
  • 详情 中小企业融资困境与微观解决漫议
    中小企业融资问题一直以来是我国融资体系里难以解决的一个问题,其实这个问题在全球范围内都不同程度的存在,随着中小企业在经济体系扮演的角色越来越重要,这个问题更越发显得突出。本文主要总结归纳了该问题主要的产生原因,并在此基础上提出了一些新的融资模式。
  • 详情 VaR-APARCH模型应用于证券投资风险分析
    本文应用APARCH模型在三种分布假设下对上证综合指数进行了拟合以计算上证综合指数的VaR风险值,然后把它与应用GARCH模型的估计结果进行比较分析。通过返回检验,我们发现,APARCH应用于VaR估计是统计有效的,并且明显优于GARHC模型。
  • 详情 改革货币制度 完善市场经济
    传统市场经济理论已陷入黔之驴的境地。面对日益严峻的需求不足、金融风险、就业危机、环境恶化和腐败盛行等棘手问题,没有创新就没有出路。实施货币电子化和中央银行观控数据库管理系统,市场经济才能绝路逢生。