Measuring extreme risk spillovers across international stock markets: A quantile variance decomposition analysis

This paper proposes a quantile variance decomposition framework for measuring extreme risk spillover effects across international stock markets. The framework extends the spillover index approach suggested by Diebold and Yilmaz (2009) using a quantile regression analysis instead of the ordinary least squares estimation. Thus, the framework provides a new tool for further study into the extreme risk spillover effects. The model is applied to G7 and BRICS stock markets, from which new insights emerged as to the extreme risk spillovers across G7 and BRICS stock markets, and revealed how extreme risk spillover across developed and emerging stock markets. These findings have important implications for market regulators.     

我国货币政策对房价作用时滞的实证分析

本文应用向量自回归模型的脉冲响应函数和预测方差分解的方法．对我国货币政策影响房价的外部时滞进行分析。利用2004年1月至2008年6月的月度数据测算出的结果是：信贷规模、狭义货币供应量和利率对房价的作用时滞分别为7个月、3个月和11个月。信贷规模和利率水平度对房价的冲击效应较小。而货币供应量对房价的冲击效应较为明显。央行在制定货币政策时应综合考虑货币工具的特点、作用时滞、经济形势和理性预期的影响。     

省际贸易对中国经济增长的贡献研究

研究目标：考察省际贸易对经济增长的贡献。研究方法：区分结构影响与部门影响的因素分解模型。研究发现：第一,消费对中国经济增长的贡献比重在下降;省际调出因素和出口因素的贡献比重在上升。第二,1987年,省际调出仅在3个省份是经济增长的第一贡献因素;2007年,省际调出则在11个省份成为经济增长的第一贡献因素。第三,从省份视角看,尽管出口对经济增长的贡献比重在上升,但在2007年,省际调出贡献比重仍然是出口贡献比重的3.5倍;从部门视角看,省际调出的贡献比重也依然大于出口的贡献比重。第四,在将因素贡献比重变化的来源区分为结构影响与部门影响之后,不管是消费贡献比重的下降,还是省际调出和出口贡献比重的上升,部门影响均发挥着主导作用。研究创新：将省际贸易引入关于经济增长的因素分解模型。研究价值：对于目前步入“新常态”的中国经济,省际贸易可以成为未来中国经济新的增长点。     

Target volatility option pricing in the lognormal fractional SABR model

We examine in this article the pricing of target volatility options in the lognormal fractional SABR model. A decomposition formula of Itô's calculus yields an approximation formula for the price of a target volatility option in small time by the technique of freezing the coefficient. A decomposition formula in terms of Malliavin derivatives is also provided. Alternatively, we also derive closed form expressions for a small volatility of volatility expansion of the price of a target volatility option. Numerical experiments show the accuracy of the approximations over a reasonably wide range of parameters.     

The multivariate Variance Gamma model: basket option pricing and calibration

In this paper, we propose a methodology for pricing basket options in the multivariate Variance Gamma model introduced in Luciano and Schoutens [Quant. Finance 6(5), 385–402]. The stock prices composing the basket are modelled by time-changed geometric Brownian motions with a common Gamma subordinator. Using the additivity property of comonotonic stop-loss premiums together with Gauss-Laguerre polynomials, we express the basket option price as a linear combination of Black & Scholes prices. Furthermore, our new basket option pricing formula enables us to calibrate the multivariate VG model in a fast way. As an illustration, we show that even in the constrained situation where the pairwise correlations between the Brownian motions are assumed to be equal, the multivariate VG model can closely match the observed Dow Jones index options.     

货币流通速度的变化与经济波动的实证分析

本文使用1990—2007年年度数据研究了我国货币流通速度变化率与实际总产出增长率之间的动态关系。通过相关性分析、脉冲响应分析以及方差分解技术深入分析了我国货币流通速度变化率、货币供应量增长率对实际总产出增长率的影响,实证结果表明我国货币流通速度对实际总产出的增长具有“加速器”的作用。基于实证分析的结论同时结合当前我国的经济形式,本文认为加大降息力度并实施积极的财政政策对防止经济的下滑具有极其重要的意义。     

Performance evaluation of production systems monitored by statistical process control and off-line inspections

Quality and productivity performance measures are very often considered in separate phases of the production system design process. However, the production system architecture affects the efficiency of the quality control system as well as the quality control configuration has an impact on the performance of the production system.The paper proposes a new analytical method for evaluating the performance of production systems in which statistical process control (SPC) techniques are implemented. Machines behaviour is monitored by measuring quality characteristics of the produced parts through off-line inspection devices and sampling inspections. The numerical results show the good accuracy of the proposed method, provide new insight in the relations among the two areas and pave the way to the joint design of production logistics and quality control systems.     

Temporal variance of revealed preference on-street parking price elasticity

This paper utilises revealed-preference parking trend data from parking meters ex ante and ex post of a general 50% price increase in the hourly cost of on-street parking to estimate the on-street parking price elasticity of demand in an area of Dublin, Ireland. Estimates are presented for the aggregate price elasticity of demand level and individual estimates for specific time periods and days of the week. In terms of reduced parking frequency, the average price elasticity of demand reported is −0.29. Daily average estimates are consistent, with one notable exception being Thursday, a ‘late night shopping’ day for which a lower price sensitivity is reported. Morning periods are also shown to be more responsive than other time periods in the test area, indicating some potential for influencing morning inbound peak traffic levels.     

中国寿险业发展的地区差异研究—基于O-B分解的实证

以中国199个地级市为研究对象,通过O-B分解可以将解释变量对被解释变量的影响分解为特征效应与系数效应的优势,对中国寿险业发展的地区差异的影响因素进行了定量分析,揭示寿险业发展的内在影响机制。实证结果表明:第一,寿险业的发展同时受到地区生产总值和城乡居民储蓄存款两个方面因素的影响,二者不可偏废;第二,寿险业发展的地区差异显著,且这一差异主要由特征差异引起。     

中国地区间经济发展不平衡——水平测度和成因探究

在测度中国省区间经济发展不平衡程度的基础上,揭示了不平衡的影响因素:1989年至2008年间,中国省区间经济发展不平衡的状况不断加剧,加权变异系数、基尼系数和泰尔指数(II)增长了30%左右,泰尔指数(I)的增幅更是高达67%;人均GDP、国内资本存量、贸易开放度和第三产业增加值等因素显著加剧了地区间不平衡,教育水平的提高则显著抑制了地区间不平衡的扩大;失业率和城市化水平也对地区间不平衡产生了一定的影响,而外商直接投资对不平衡的影响作用是不确定的。