The effectiveness of government spending on education and health care in developing and transition economies

Recent studies show that corruption is associated with higher military spending [Eur. J. Polit. Econ. 17 (2001) 794] and lower government spending on education and health care [J. Publ. Econ. 69 (1998) 263]. This suggests that policies aimed at reducing corruption may lead to changes in the composition of government outlays toward more productive spending. However, little empirical evidence has been presented to support the claim that public spending improves education and health indicators in developing and transition countries. This paper uses cross-sectional data for 50 such countries to show that increased public expenditure on education and health care is associated with improvements in both access to and attainment in schools, and reduces mortality rates for infants and children. The education regressions are robust to different specifications, but the relationship between health care spending and mortality rates is weaker.     

The lexicographic composition of abstract games

The lexicographic composition of reflexive and complete binary relations (which are often called abstract games) is studied. The necessary and sufficient conditions are obtained for a lexicographic composition of quasi transitive relations to be quasi transitive.The case of acyclicity of lexicographic composition of two relations is also investigated. Received: September 25, 2000; revised version: November 28, 2000     

基于共生关系的创意产业集群形成机制——上海18个创意产业集群实证

以上海18个创意产业集群为分析对象,利用共生模型对创意产业集群之间的形成机制进行实证研究。研究结果表明,互利共生关系是创意产业集群形成的逻辑起点,互利共生关系越贴近于对称互利共生关系,则创意产业集群效应越好,从而越有利于创意产业集群的形成和稳定发展,且共生关系质量越好。     

产业集聚效应的系统动力学模型研究

以系统动力学理论为基础，结合产业集聚效应的正反馈特征，对人才流、技术流、资金流和市场流的因果关系进行了探讨。通过产业集聚效应衡量方法的比较，构建系统动力学模型，分析制约产业集聚效应发挥的主要因素，提出加强政府投资力度、发挥市场机制作用和提高企业整体能力的建议。     

Current Account, Capital Formation and Terms of Trade Shocks: a Revisit of the Harberger-Laursen-Metzler Effect

This paper extends the Blanchard model of a closed-economy to a three-good (exportable, importable and non-tradable goods) open-economy model with capital accumulation and uncertain lifetimes to study the impacts of terms of trade shocks on the current account. The simulation results show that a model with uncertain lifetimes is more appropriate to describe a small open economy like Taiwan at the steady-state equilibrium than a model with infinite lifetimes. We find that the Harberger-Laursen-Metzler effect is discernible for temporary or permanent terms of trade shocks. Furthermore, the steady state is a saddle point and the speed of convergence of capital and consumption is quite low.     

西方现代股利政策理论的演进与评价

股利政策是个谜。四十多年来,西方财务学者分别从不同的角度、运用不同的方法对股利政策进行了大量的理论和实证研究。本文对此进行了较为系统和全面的回顾与评述。早期股利理论研究主要集中在股利政策与股票价格是否有关的研究上,其观点主要有在手之鸟理论和股利无关论。20世纪八十年代后,股利之争主要集中在股利为什么会引起股票价格变化,其观点有追随者效应、信号理论、代理学说和行为学派等。虽然这些学派的观点在不同程度上还存在一些缺点,但它们改变了传统理论的思维方式和分析方法,极大地扩展了财务学的研究视野,从而使股利政策研究在“量”和“质”上均产生了很大的飞跃。     

中国股票市场风险和收益风格效应的非参数检验

本文利用Kendall协同系数检验考察我国股票市场风险和收益的风格效应。通过实证研究首次发现各风格指数的收益率、总风险及指数特有风险均具有明显的分层结构,风格效应显著。对影响风险和收益的风格因素进行的分析表明:股票风险受规模因素的影响十分明显;而股票回报率受价值因素的影响比较显著,受规模因素的影响不明显。并进一步用Spearman相关系数考察了风险与收益之间的秩相关性。本文研究结果对资产配置和风险监管等问题具有参考价值。     

Was there a Portfolio Effect of the Micro-economic Leverage ？ Some Empirical Evidence from the Chinese Stock Market

The study is on a linear model of the relationship between the systematic risk and the micro-economic leverage and analyzed the data from the steel, energy source and chemical fibre industry listed companies in the Chinese stock market in 2002 and 2001. Using the linear regression method, empirical equations were found. The portfolio effect was shown so that some empirical evidence had been found to support the micro-economic leverage portfolio effect theory, which was that the listed companies balanced the operating and financial leverage to minimize the systematic risk.     

畜禽养殖业的环境影响及经济分析

畜禽业污染是我国农业面源污染的主要来源。本文估算了我国畜禽养殖业污染物排放量,阐述了畜禽养殖的环境影响,分析了畜禽污染内在的经济原因,并提出了防治畜禽污染的经济政策和措施,包括发展循环畜牧业、建设现代化的畜禽业物流体系、采纳各种环境经济手段、界定农村公共资源产权、实施优质畜禽产品品牌化战略、鼓励发展环保产业。     

城市化的区域发展效应研究

从城市化对区域发展的效应理论分析入手,对吉林省城市化的区域发展效应现状进行剖析,总结了城市化区域发展效应发挥的障碍因素,最后提出了城市化区域发展效应增强的对策。