Economic–social interaction in China1

This paper analyzes economic–social interaction in China in connection with the country's change of economic system. I define an economic system in terms of a multi‐dimensional vector of broad institutional characteristics, and I emphasize that important features of the social development are closely related to specific changes in these various dimensions. I classify China's options for future social improvements into three broad categories: (i) policies that improve the stability and distribution of factor income; (ii) government‐created wedges between factor income and disposable income; and (iii) improvements in the quantity, quality and distribution of human services, such as education and healthcare.     

GSM移动通信手机射频收发系统的设计与实现

提出了一种按照GSMPhase2 技术规范实现的GSM移动通信手机射频收发子系统的硬件方法。该系统采用了当今较为流行的DCR方案,并且支持GPRS应用,可工作在EGSM900和DCS1800双频段上。文中介绍了射频收发子系统的构成和基本原理,描述了系统设计实现的具体过程,为系统设计提供了必要的分析和计算。     

Regional policy design: An analysis of relocation, efficiency and equity

Despite substantial regional expenditure at both national and community level, European regional policies do not appear to deliver. Evidence suggests that neither efficiency gains nor reduced regional inequalities result. If there is any positive impact at all, then it is at most a redistributional one. If transfers are mainly redistributional in nature, would policies based on non-distortionary financing be a better route to follow? We consider the alternatives to a distortionary regional policy that forces the delocation of activities. Are non-distortionary policies always relatively more efficient than distortionary ones? We analyse these questions employing a new economic geography model, which also takes into account the importance of knowledge spillovers for productivity, industry location and policy. We show that the effectiveness of different regional policies depends on (i) intra-industry knowledge spillovers, (ii) inter-industry knowledge spillovers and (iii) trade costs. Our analysis suggests that the European approach to the elimination of regional inequalities may, relatively, be the more costly alternative.     

Impact of Karl Pearson's Work on Statistical Developments in India

Karl Pearson's work greatly inspired P. C. Mahalanobis's interest in statistics, who was at the centre of modern statistical developments in India. Mahalanobis learned statistics on his own, reading Pearson's articles and his journal, and encouraged others to study Pearson's papers. Pearson was a Honorary Fellow of the Indian Statistical Institute, which has been a leading statistical training and research center in India. The statistical revolution that Pearson brought also facilitated the training and research of many Indian statisticians.     

B2C电子商务中的在线信任系统模型研究

信任是电子商务持续发展的关键因素,目前对B2C电子商务中的信任研究侧重于与在线信任相关的某一方面。文章提出了B2C电子商务中的在线信任系统模型,首先分析了B2C电子商务中在线信任的概念和特点;然后从主、客观两方面讨论了B2C电子商务中在线信任的构成;接着从客户、商品、在线公司及其网站以及环境等五个方面讨论了B2C电子商务中的在线信任影响因素。在分析B2C电子商务中在线信任构成和信任影响相关因素的基础上,建立了包括主观感知信任和客观制度信任的在线信任系统模型,并简要指出了此模型应用于B2C电子商务中在线信任     

基于I2DEF模型大型信息系统的开发

文章从理论上介绍了I2DEF模型的基本概念,讨论了该模型的框架模式,分析了该技术的特点与意义,阐述了大型复杂企业信息系统中选用I2DEF设计方法的原由,从而为系统开发工作的顺利进行提供了一个良好的技术手段。     

银行信贷风险管理的G2B电子政务信息需求研究

银行信贷风险管理是商业银行和银行监管机构的核心任务之一,然而大量的虚假信息和欺骗行为常常给信贷风险管理带来许多挑战。本文通过分析银行信贷风险管理所需的六方面信息,提出了利用电子政务信息资源来获取企业信息,将从政府系统获取的信息与查阅资料、现场调查等方式获得的信息进行整合和比对,增强信贷调查信息的可靠性和准确度,从源头上降低信贷风险,有效地支持信贷管理决策。     

Investment,consumption, and hedging under incomplete markets

Entrepreneurs often face undiversifiable idiosyncratic risks from their business investments. We extend the standard real options approach to an incomplete markets environment and analyze the joint decisions of business investments, consumption/savings, and portfolio selection. For a lump-sum investment payoff and an agent with a sufficiently strong precautionary savings motive, an increase in volatility can accelerate investment, contrary to the standard real options analysis. When the agent can trade the market portfolio to partially hedge against investment risk, the systematic volatility is compensated via the standard CAPM argument, and the idiosyncratic volatility generates a private equity premium. Finally, when the investment payoff is a series of flows, the agent's idiosyncratic risk exposure alters both the implied option value and the implied project value, causing a reversal of the results in the lump-sum payoff case.     

B2C电子商务的"集成式"物流解决方案

无论商业交易的形式如何变化，物流的功能是永恒的。物流问题已经成为中国B2C电子商务发展的瓶颈。本文提出“集成式”物流解决方案，旨在为不同类型、不同层次、定位于不同细分市场的B2C电子商务企业提供一种可行的物流解决方案。     

虚拟市场B2C心理营销理论探析

虚拟市场是当今经济环境中新兴的市场,在此市场中如何让B2C营销发挥作用是一个亟待解决的问题。虚拟市场B2C心理营销理论的提出、结构、观点及研究过程的探索,目的在于明确网络营销仍然是关于人的营销,在制定和实施各种营销策略时必须充分考虑人的因素、特别是人的心理行为。利用虚拟市场B2C心理营销理论指导企业的B2C营销工作,使B2C营销真正能够为企业创造价值,扩大我国的B2C营销模式,促进我国网络经济健康有序地发展