Can stochastic discount factor models explain the cross-section of equity returns?

We propose a multivariate test of the capital asset pricing model (C-CAPM) of the cross-sectional variation in equity returns in which we compare cross-sectional variation in equity returns to the cross-sectional variation in their conditional covariance with stochastic discount factors. We use a multivariate generalized heteroskedasticity in mean model to estimate 25 portfolios that are formed on size and the book-to-market ratio. Each portfolio is allowed to have its own no-arbitrage condition. We find that although the conditional covariances of returns with consumption exhibit negative variation across size, they do not vary across the book-to-market ratio. Thus, C-CAPM can capture the size effect, but not the value effect. The fit is, however, improved by allowing the coefficients on the consumption covariances to be different. The value effect appears to be associated with the book-to-market ratio as well as size. On its own the book-to-market ratio does not generate additional information about average returns to C-CAPM. A possible explanation for these findings is that both small and low book-to-market ratio firms are expected to have higher rates of growth.     

专业村形成历程及影响因素研究——以豫西南3个专业村为例

专业村发展对于大范围提高农户收入具有重要作用。通过对豫西南3个样本专业村121户专业农户的调查分析,发现专业村是在利用当地资源的基础上,在能人的带动下逐渐发展形成的,其发展历程服从"S"型曲线创新传播规律。其中,资源等地理环境因素起基础作用,初期接受者或能人在发展过程中起核心作用,政府行为可加快其发展过程,农户尤其是家庭中的"顶梁柱"的财商对农户专业项目的发展及其时间早晚具有重要影响,多数农户对专业项目的接受是通过模仿方式实现的。在农区发展中,可将建设专业村作为重要途径。     

基于因子分析和聚类分析的山西省区域经济竞争能力评价

文章以山西省11个地级市2009年的相关经济指标为研究对象,采用因子分析和聚类分析等多元统计方法进行了实证研究,对各市间的经济实力进行了比较,并给出了深入分析和政策建议。     

国际R&D溢出对中国全要素生产率的影响——基于服务进口渠道的实证研究

首先测算了1979-2012年中国的全要素生产率,然后运用改进后的Lichtenberg和Pottelsberghe方法核算出通过服务进口渠道获得的国际R&D资本存量,接着运用基于时间序列数据的GMM、协整模型及VEC模型进行实证研究。得出结论:来自服务进口渠道的国际R&D溢出对中国全要素生产率的提高具有积极的促进作用,但国内重要经济条件是影响该溢出效应发挥的重要门限因素;国际R&D溢出与TFP的短期偏离被系统以较快速度调整至长期均衡状态。     

The critical discount factor as a measure for cartel stability?

This paper considers the stability of tacit collusion in price setting duopolies with repeated interaction. The minimum discount factor above which tacit collusion can be sustained in a subgame perfect equilibrium is called the critical discount factor δ*. In addition, δ* is often used as an intuitive measure for the stability of a tacit cartel, assuming that a collusive equilibrium is more difficult to sustain when δ* increases. However, according to standard theory the distance δ − δ* between the actual and the critical discount factor does not matter for stability as long as δ > δ*. This paper contributes experimental evidence that supports the intuitive idea that a larger critical discount factor makes collusion a less likely outcome.      

变电站投资费用模型及敏感因素分析

本文结合变电站各阶段费用的特点,应用全寿命周期费用分析方法对变电站的建设进行决策分析。将变电站的全寿命周期费用分为一次投资费用、运行费用和中断供电损失费用,建立了变电站全寿命周期费用估算模型,基于运行年限、年利率和通货膨胀率对变电站的全寿命周期费用进行修正以及敏感因素分析。以220kV变电站为例,对其综合自动化系统和常规保护系统进行全寿命周期费用的分析和比较,从而验证了所建全寿命周期费用模型对变电站建设进行决策分析的实用性和可行性。     

中国可持续经济增长方式研究—基于1990-2007年间各省市的面板数据

在Lucsa(1988)模型基础上,以1990-2007年各省、市、自治区的面板数据计算中国的全要素生产率,通过对中国经济的全要素生产率的分解.考察各主要因素对经济增长的作用以及它们的变化情况,可以发现:中国的经济增长严重依赖投资拉动,技术进步与人力资本在中国经济增长中的作用不断提高,而较高的行政支出对经济增长起了比较明显的负作用.     

我国农药制造业生产率增长的实证分析——基于DEA的Malmquist指数法

为探寻提高我国农药制造业生产效率的途径,运用DEA的Malmquist指数方法,从整体趋势和各省区角度定量考察了我国农药制造业增长过程中全要素生产率的增长状况,结果表明:从全国的平均时间序列数据来看,我国农药制造业全要素生产率是在波动中增长,全要素生产率的增长主要是技术进步的贡献,而制约技术效率改善的主要原因是规模效率的下降.所研究的全国二十八个地区,生产率基本上都得到了不同程度的增长,只有云南地区有所下降.就全国而言,农药增长的主要推动力量来自于农药生产率的提高.从动态演变来看,农药全要素生产率增长在农药增长中的作用日渐增强.     

The reference model of competitiveness factors for SME medical sector

The paper presents the issue of SME competitiveness in terms of determining their competitive position on the market. The proposed reference model, focused on the evaluation of the competitiveness of a selected group of SMEs on the market of medical services, was developed to support strategic decision-making. The usefulness of the model is verified in the process of determining the competitive position of a selected group of participants, applying research methods of strategic analysis. Relationships, observed during the study, occurring between the competitiveness factors and the competitive position taken by a company, provide knowledge, whose utilization directs the company's business to improving its market performance, organizational and economic conditions.     

担保债权凭证之评价——多因子模型和KMV模型之探讨

探讨担保债权凭证商品之评价,包含缩减式模型及结构式模型两种研究方法;前者以多因子相关性模型,而後者以KMV模型为方法探讨之主轴。多因子相关性模型中资产的违约分配函数分别假设为指数、韦伯及Burr分配;再分别结合Gauss Copula或t5 Copula函数,估计商品的信用价差。实证分析以台湾“玉山银行债券资产证券化特殊目的信托2005—1受益证券”为例。实证研究结果发现,指数分配之信用价差估计值偏大,Burr分配估计值最小;t5 Copula函数之信用价差估计值都较Gauss Copula函数之估计值大。此外,将数据作适当调整後应用KMV模型之信用价差估计值比多因子相关性模型之估计值大。