Replacement Investment: Optimal Economic Life Under Uncertainty

Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant).     

Foreign debt and economic growth

This paper empirically examines the relationship between government foreign debt and the growth rate of per capita GDP based on a total sample of 77 countries, as well as sub‐samples of various regions. Cross‐sectional estimates of the coefficient of foreign debt based on the total sample have a negative sign, but are not always statistically significant. Available data from African countries indicate that foreign debt and the growth rate of per capita GDP were negatively related at a high level of significance. For industrialized and Latin American sub‐samples, this relationship is negative but statistically insignificant. The sub‐sample Asian and other developing countries show a positive but insignificant relationship. JEL classification: F34, H6, O23.     

西部经济发展与地方政府的制度创新

从经济发展与地方政府的关系入手,分析现阶段西部地方政府在经济发展中所需要的相关制度创新可得出,西部经济的发展归根结底来自于自我的发展能力,而不是依靠不可持续的、外来的资源支持.实践表明,地方政府可以通过提供基础设施、突破低水平发展的瓶颈等相关的制度创新来弥补市场机制的不成熟,也可改善非市场机制的运行,从而推动经济的发展.     

立足内需、扩大消费的财政政策研究

扩大内需一直是我国政府实现经济平稳增长的重要手段。我国一直存在的低消费、高投资的结构性矛盾,将会引发诸多经济运行风险。导致低消费格局的原因主要来自体制障碍,包括收入分配的不合理、城乡二元制结构、政府公共物品供给不足等。因此,需要财政政策在扩大内需,特别是扩大消费中有所作为。通过财政收支等手段建立“消费主导型”经济增长模式应是财政政策今后一段时期内的目标。     

制度在经济绩效中的作用

中央计划经济的绩效与市场经济的绩效有显著性的差异，产权和资源配置方式的差异是决定不同经济体系经济绩效差异最为重要的因素。制度是经济体中经济个体博弈的基本规则。市场经济比中央计划经济提供了更强的激励．从而更有效地减轻了道德风险带来的效率损失，所以从消费者福利来看，市场经济比中央计划经济更有效。在一定的条件下，无论是从产出还是从消费者的福利来看，市场经济都比中央计划经济更有效率。     

农民工动态演化研究

本文通过对二元经济结构刚性对农民工的约束以及伴随我国相关政策调整而出现的农民工回流分析,说明了农民工动态演化,并提出了促进农民工合理、有序流动机制的相关政策建议。     

The French Communication Industry Defined and Analyzed through the Social Fabric Matrix,the Filiere Approach,and Network Analysis

This paper examines the relative impact of economic freedom, civil liberties, and political rights on growth. A system of three simultaneous equations is used to unearth the channels through which these institutional dimensions affect economic growth. These include greater efficiency and enlarged investment in physical and human capital. The sample contains 79 countries and six periods covering the years from 1976 to 2005. The results show that the three dimensions of institutional quality are important for economic growth either through a better allocation of resources or, indirectly, through the stimulation of investment in physical and human capital.     

1989—2010年新疆经济发展差异的区域分析

以县域为基本单元,在综合考虑各县域人均GDP和GDP总量变化的基础上,运用象限图法和泰尔指数法,分析了新疆不同县域经济发展类型和县域经济差异的时空变化趋势,结果表明：新疆县域经济呈现不同的增长类型,且在东疆、南疆、北疆之间及区内各县市之间呈现分异性。区域经济滞后型的县域明显多于经济活跃型的县域,经济活跃型的县域集中分布于天山北坡、铁路、公路主干线上,经济滞后型县域集中分布于南疆以及北疆、东疆的边远地区。泰尔指数分析结果表明,在区域总体差异扩大的同时,东疆、南疆、北疆三大区域之间的差异和区内各县域之间的差异都在逐步扩大,并且区内差异是区域总体差异的主要贡献者。     

经济发展与生态保护的思考——橡胶种植与热带雨林

文章在分析经济发展和生态保护的内涵和辩证关系的基础上,通过探讨云南省西双版纳傣族自治州在社会经济发展过程中存在的生态环境矛盾,指出兼顾生态保护的区域经济发展模式才是可持续发展之路,并从宏观上就经济发展中的生态保护问题提出了有益的建议.