“负成本”低碳转型及其政策链构建

面对气候变化带来的所有问题,低碳经济是最有效的发展模式。在低碳经济转型过程中,对于企业或者某个行业来说,转型成本是其最为关心的问题。因此,基于麦肯锡成本曲线中负减排成本概念,从成本定义、执行中的障碍及贴现率三个方面分析负减排成本的不足之处;在此基础上,提出低碳经济转型"负成本",并从低碳转型成本的增加和减少两方面建立计算模型。最后,以低碳经济转型负成本作为核心要素,构建实现"负成本"低碳经济转型的政策链。     

Existence of a competitive equilibrium in a one sector growth model with heterogeneous agents and irreversible investment

Summary. We prove existence of a competitive equilibrium in a version of a Ramsey (one sector) model in which agents are heterogeneous and gross investment is constrained to be non negative. We do so by converting the infinite-dimensional fixed point problem stated in terms of prices and commodities into a finite-dimensional Negishi problem involving individual weights in a social value function. This method allows us to obtain detailed results concerning the properties of competitive equilibria. Because of the simplicity of the techniques utilized our approach is amenable to be adapted by practitioners in analogous problems often studied in macroeconomics. Received: September 13, 2001; revised version: December 9, 2002 RID="*" ID="*" We are grateful to Tapan Mitra for pointing out errors as well as making very valuable suggestions. Thanks are due to Raouf Boucekkine and Jorge Duran for additional helpful discussions. We also thank an anonymous referee for his/her helpful comments. The second author acknowledges the financial support of the Belgian Ministry of Scientific Research (Grant ARC 99/04-235 “Growth and incentive design”) and of the Belgian Federal Goverment (Grant PAI P5/10, “Equilibrium theory and optimization for public policy and industry regulation”). Correspondence to: C. Le Van     

中国企业对发达国家FDI的逆向知识转移

知识是竞争优势的来源。在近几年快速增长的中国企业对发达国家的FDI中,创造性资产寻求被公认为是重要的驱动力量。然而,创造性资产寻求目标的实现关键在于子公司向母公司的逆向知识转移,但现有文献尚未关注像中国这样的发展中国家的跨国逆向知识转移。本文首先建立了逆向知识转移的分析模型,并剖析了中国企业FDI逆向知识转移存在的先天劣势。在此基础上,提出了中国企业克服知识转移劣势的解决思路,并以联想为案例进行了实证。     

MULTISIM软件在模拟电子技术课程教学中的应用

电子技术教学,尤其是模拟电子技术的教学,一直是老师们在研究的问题。一直以来,学生们都认为模拟电子技术这门课程是不好学习的。如今电脑已经非常普及,学校也能够为学生上课提供足够的电脑。那么就我们可以使用MULTISIM软件来教授和学习电子类的课程。本应用MULTISIM软件解决了模拟电子技术课程中很重要的带负反馈三极管两级放大电路的反馈分析以及交流参数的计算问题。     

收入不平等对经济增长的负面影响机制——近二十年文献综述

近年来,国内外学者运用各种方法探讨了收入不平等与经济增长的关系。大部分研究结论显示,收入差距对经济增长存在间接的负面影响,两者之间存在一个多因素的传导过程,包括人力资本积累机制、政治经济决策机制、社会冲突机制、需求传导机制以及其他传导机制。总的来看,这些研究加深了对于两者关系性质和相互影响的认识,但研究结论的分歧和研究方法的局限性仍然存在,有必要对两者关系进行更深入的研究。     

税收公平伦理视角下的个人所得税制建构

税收公平原则富含社会伦理的思想。对个人所得税的征管，不仅要强调其经济功能，更要关注其社会公正和伦理维护的社会功能。我国的个人所得税制存在纳税人身份确定、纳税能力确定、征税范围确定三个方面的公平伦理扭曲。因此，新的个人所得税构想中应当强调全民纳税、量能负担原则，实行低累进税率和负所得税税率，同时要改进征管模式。     

The Media's Role in Influencing Perceptions of Housing Values and the Resulting Impact on the Macroeconomy

The housing market is a major component of the economy and persistent negative media reports can adversely affect perceptions and expectations of homeowners as to the value of their home. As a result, households reduce their expenditures and increase their savings in an effort to rebuild lost wealth. In the short run the economy suffers and the recession is magnified. This paper demonstrates, through an empirical study, how negative media reports regarding the deteriorating conditions of the national housing market affects what households feel their housing is worth.     

社会资本对企业营销的影响

社会资本对企业营销的影响具有双重性,既存在积极作用,也会产生消极影响。社会资本对企业营销的积极影响表现在降低代理成本、提高营销组织工作效率、推动开放式营销组织治理模式的构建、提供更多商业机会和提高顾客满意度等5个方面;社会资本对企业营销的消极作用则表现为竞争的扭曲和营销的僵化两个方面。     

Pro-cyclical effect of sovereign rating changes on stock returns: a fact or factoid?

This article examines the effect of changes in sovereign credit ratings and their outlook on the stock market returns of European countries at different phases of business cycle. Using standard four-factor model, it records a significant average marginal effect of credit rating announcements on stock market returns. Both magnitude and significance of the effect vary with business cycle and across announcement types. However, we do not find evidence of pro-cyclical effect of sovereign rating and outlook changes on stock returns. Our results show that stock markets react more negatively to rating downgrades in recovery phases and more positively to rating upgrades in contractionary period. Both results are statistically significant and robust to various sensitivity tests.     

按劳分配与收入公平分配

按劳分配与收入公平分配存在正相关,主要表现在按劳分配存在前提和分配主体转换的公平性、分配依据和利益结构及其主体地位的合理性五个方面.按劳分配的实践与收入公平分配存在负相关,主要表现在由于理解上的偏差、应用中的偏差、实施对象客观条件不同而导致收入分配中事实上的不公平.为了强化按劳分配与收入公平分配的正相关、弱化按劳分配的实践与收入公平分配的负相关,必须采取相应对策.