我国城镇居民平均消费倾向与收入分配状况关系的实证研究

中国的有效需求不足现象近年来成为一个被普遍关注的问题,而居民消费需求不足更是成为关注的焦点。本文在前人研究的基础上,从标准的消费者预期效用最大化模型出发,推导出中国城镇居民的个体"短视"消费模型和总量消费模型;运用我国1985～2004年城镇居民消费、收入及其他相关数据,通过误差修正模型和对数线性模型分别对数据进行了计量分析,发现在我国现阶段,城镇居民收入分配差距的扩大引起了居民平均消费倾向的减小,且其长期影响尤为显著。在对计量结果进行分析的基础上,本文给出了若干政策建议。     

我国会计准则与国际会计准则的趋同分析

上市公司执行新准则标志着我国会计准则的国际趋同。我国会计准则和国际会计准则是否存在着差异及差异存在原因是什么,本文对此进行了探讨。对投资业务、固定资产业务和无形资产、存货业务的具体准则进行对比,分析其中差异,并结合我国会计环境对差异存在的原因进行了分析,同时提出对策建议。     

上海世博会的乘数效应

本文主要运用投资乘数模型,对世博会为上海GDP的贡献进行了分析和预测,并对理论乘数效应在举办世博会中的制约因素进行了讨论,为上海市政府的宏观调控提出建议。     

Volatility in the knowledge economy

Summary. We seek to explain the economic volatility of the last 6 years, in particular the rapid expansion and contraction of the knowledge sectors. Our hypothesis is that these sectors amplify the business cycle due to their increasing returns to scale, growing faster than others in an upswing and contracting faster in a downswing. To test this hypothesis we postulate a general equilibrium model with two sectors: one with increasing returns that are external to the firm and endogenously determined - the knowledge sector - and the other with constant returns to scale. We introduce a new measure of volatility of output, a real beta, and derive a resolving equation, from which we prove that the increasing return sectors exhibit more volatility then other sectors. We validate the main results on US macro economic data of real GDP by industry (2-3 digits SIC codes) of the 1977-2001 period, and provide policy conclusions.Received: 18 March 2002, Revised: 16 February 2004, JEL Classification Numbers: D5, D58, E10, L50, L52, O38, O51.Correspondence to: Graciela Chichilnisky     

Growth,Convergence, and Social Cohesion in the European Union

The aim of this paper is to analyze the economic and social cohesion in the European Union. There are different factors to explain the convergence process and besides, empirical findings are not conclusive. To the European Union, GDP per head interregional differences have decreased for certain periods but it has remained unchanged or even increased for others periods. The second report on the economic and social cohesion indicates that some decades are necessary to eliminate regional differences. These differences in regional GDP are mainly explained by differences in their productive structures, degree of innovate activity, communications structures, which depend on the relative level of transport infrastructures, and manpower qualifications. This analysis allows us to obtain some conclusions to the economic policies and the social cohesion. A preliminary version of this paper was presented in the 57th International Atlantic Conference, held in Lisbon, Portugal, March 10–14, 2004.     

投资者股利政策偏好及其交易行为

本文选取了2002-2004年深沪两市派发股利的公司作为研究样本,通过T检验和一元线性田归模型发现,投资者偏好混合股利和股票股利主要是由于这两种股利形式带来较之现金股利更高的回报率.同时,在回报率较高时往往伴随有显著的交易量增加,调整后的判定系数在1%的水平上显著,但是也表现出一定的滞后性.     

Assessing the impact of patent infringement on new product sales

In order to assess the impact of patent infringement on the growth of a new product, a model is developed through the intervention model development processes of Box-Jenkins and Box-Tiao. Physical interpretations of model parameters and determination of associated damages suggest that the model can provide a sound basis for analyzing patent infringement disputes.     

中欧贸易与欧盟技术性贸易壁垒

近年来,技术性贸易壁垒(TBT)已成为发达国家实施贸易保护主义更为隐蔽、更为有效的手段.作为中国第三大贸易伙伴的欧盟,其实施的各种TBT措施对中国的出口产品产生了严重的影响.因此,必须建立欧盟技术性贸易壁垒预警机制,时时监控其新动向;坚持"以质取胜"的原则,大搞技术创新和产品创新,以更高的产品质量标准和专利注册超越其贸易壁垒.     

论民事诉讼回避对象的立法缺陷及完善

民事诉讼程序中回避制度的适用对象因受到当事人知情权和被申请主体资格等限制，在实践中无法得到有效的实现。这与我国回避制度的立法思想、立法技术和回避处理程序的行政化有密切关系。我国立法应当与司法改革的成果相适应，适当扩大回避对象的范围，并从程序性质的重新界定、告知制度的细化、制度之间的衔接等方面来保障当事人申请回避权的实现。     

股票市场收益率波动长记忆性的分解及实证研究

目前股票市场长记忆性检验和建模方法，不能很好地消除短期记忆的影响，针对这一问题，本文提出寻找序列的突变点，通过将序列分解为只包含长记忆性部分和不包含长记忆性部分的序列分解技术，来排除短期记忆的影响。对上证指数和深圳成分指数收益率波动的长记忆性进行实证研究发现，将序列分解以后进行长记忆性检验，不仅可以得出长记忆性检验更为精确的结论，同时可以检验序列分解过程的效果。