新加坡和日本知识发展的实证研究及对我国的启示

随着知识经济时代的到来,世界经济的发展比以往任何时候都更加依赖于知识的扩散和应用。科学地制定知识经济发展战略对于实现中国及发达地区经济的可持续发展有重大的现实意义。本文以新加坡和日本为研究对象,研究发展知识经济的主要影响因素,为我国相关地区发展知识经济提供科学依据。     

管输天然气的质量指标及其标准化

阐述了管输天然气质量指标的基本原则，国际标准化组织天然气技术委员会(ISO／TC193)对气质指标的规定．强制性国家标准(GB17820—1999)的规定。指出管输天然气硫化氢含量和水露点对管道内腐蚀的影响，提出由体积计量向能量计量过渡的技术要求．     

Corporate Governance Reforms: Redefined Expectations of Audit Committee Responsibilities and Effectiveness

Comprehensive regulatory changes brought on by recent corporate governance reforms have broadly redefined and re-emphasized the roles and responsibilities of all the participants in a public company’s financial reporting process. Most notably, these reforms have intensified scrutiny of corporate audit committees, whose role as protectors of investors’ interests now attracts substantially higher visibility and expectations. As a result, audit committees face the formidable challenge of effectively overseeing the company’s financial reporting process in a dramatically changed – and highly charged – corporate governance environment. This paper discusses the new expectations of audit committee responsibilities and effectiveness in the wake of corporate governance reforms, key challenges, “whistleblower” provisions and shortcomings, and provides some directions for future research.     

Understanding the Implied Volatility Surface for Options on a Diversified Index

This paper describes a two-factor model for a diversified index that attempts to explain both the leverage effect and the implied volatility skews that are characteristic of index options. Our formulation is based on an analysis of the growth optimal portfolio and a corresponding random market activity time where the discounted growth optimal portfolio is expressed as a time transformed squared Bessel process of dimension four. It turns out that for this index model an equivalent risk neutral martingale measure does not exist because the corresponding Radon-Nikodym derivative process is a strict local martingale. However, a consistent pricing and hedging framework is established by using the benchmark approach. The proposed model, which includes a random initial condition for market activity, generates implied volatility surfaces for European call and put options that are typically observed in real markets. The paper also examines the price differences of binary options for the proposed model and their Black-Scholes counterparts. Mathematics Subject Classification: primary 90A12; secondary 60G30; 62P20 JEL Classification: G10, G13     

武汉金融安全区模式设计与研究

金融安全与稳定直接关系到一个国家或地区的经济安全与社会稳定。一个地区 ,在突出的支付风险得以逐一化解之后 ,适时启动创建金融安全区工程 ,并以此全面提高金融监管水平 ,实现区域金融业持续稳健发展已经成为当前我们面临的重要课题。本文在论证武汉市开展创建金融安全区的必要性和可行性的基础上 ,提出了构建以武汉金安指数为核心的指标监测体系、具体创建规划以及相应运行规程。     

企业统计如何迎接新挑战

随着我国《统计法实施细则》的颁布,在这一新的形势下,企业统计应如何发挥其作用,值得我们每一位统计工作者深思,本文对此进行了探讨。     

我国固定资产投资宏观效益分析

固定资产投资的直接目的是增加固定资产 ,应考察投资和增加固定资产的关系 ,其宏观指标为固定资产交付使用率和项目建成投产率 ;固定资产投资的最终目的是促进经济增长 ,增加国民收入 ,应考察投资和增加国民收入的关系 ,其宏观指标为固定资产投资效益系数或投资系数。我国固定资产交付使用率“七五”时期比“六五”末不断提高 ,“八五”较为平稳 ,“九五”开始回升。我国固定资产投资效益系数“六五”以来较为平稳 ,“八五”较高 ,“九五”下滑幅度较大。应采取多种措施 ,不断提高投资效益。     

地区物价指数的编制方法研究

地区物价指数是反映不同地区价格水平的差异程度的综合指标。本文研究了建立地区物价指数及遵循的原则 ,同时给出了两种建立地区物价指数的方法     

Hedging Housing Risk*

An unusually rich source of data on housing prices in Stockholm is used to analyze the investment implications of housing choices. This empirical analysis derives market-wide price and return series for housing investment during a 13-year period, and it also provides estimates of the individual-specific, idiosyncratic, variation in housing returns. Because the idiosyncratic component follows an autocorrelated process, the analysis of portfolio choice is dependent upon the holding period. We analyze the composition of household investment portfolios containing housing, common stocks, stocks in real estate holding companies, bonds, and t-bills. For short holding periods, the efficient portfolio contains essentially no housing. For longer periods, low-risk portfolios contain 15 to 50 percent housing. These results suggest that there are large potential gains from policies or institutions that would permit households to hedge their lumpy investments in housing. We estimate the potential value of hedges in reducing risk to households, yet yielding the same investment returns. The value is surprisingly large, especially to poorer homeowners.     

An empirical investigation on the antecedents of consumers’ cognitions of and attitudes towards digital signage advertising

This paper investigates the antecedent factors of consumers’ perceived values and attitudes towards digital signage advertising in a structural model. The results of this study revealed that four key antecedents (i.e. informativeness, involvement, entertainment and targeting) affect consumers’ attention to digital signage advertising and perception of advertising values. This study shows that attitudes towards digital signage and perceived interactivity with it also affect consumers’ attitudes towards digital signage advertising. This, in turn, influences positive attitudes towards a brand and higher purchase intentions.