关于加速长春市循环经济发展的现实思考

发展循环经济是实施可持续发展战略的最重要和最现实的选择.目前,长春市发展循环经济还处在探索和起步阶段,在取得明显成效的同时,也存在一些需要亟待解决的困难和问题.长春市在"十一五"乃至更长时期,加速发展循环经济的意义重大而深远.今后,加速长春市循环经济发展需要关注以下几个方面:思想认识上应高度重视,规划纲要出台要及时,经验推广操作应科学,技术资金支持要倾斜,政府政策管理落实要到位.     

A Stochastic Frontier Production Function with Flexible Risk Properties

This paper considers a stochastic frontier production function which has additive, heteroscedastic error structure. The model allows for negative or positive marginal production risks of inputs, as originally proposed by Just and Pope (1978). The technical efficiencies of individual firms in the sample are a function of the levels of the input variables in the stochastic frontier, in addition to the technical inefficiency effects. These are two features of the model which are not exhibited by the commonly used stochastic frontiers with multiplicative error structures.An empirical application is presented using cross-sectional data on Ethiopian peasant farmers. The null hypothesis of no technical inefficiencies of production among these farmers is accepted. Further, the flexible risk models do not fit the data on peasant farmers as well as the traditional stochastic frontier model with multiplicative error structure.     

Economic progress and skill obsolescence with network effects

Summary. We construct an OLG model with network effects to examine skill obsolescence when individuals can choose technological vintages. In the absence of transfer payments, some regions of the parameter space have unique stationary equilibria, others have unique cyclical equilibria, and others have multiple stationary equilibria. All equilibria are Pareto efficient. However, rat race equilibria can exist in which all agents currently alive prefer a slower rate of progress than occurs in equilibrium. When contemporaneous transfers are allowed, equilibria are unique everywhere, but a cycle still exists, and a rat race can still arise in equilibrium. Allowing intertemporal transfers (debt) ensures that all equilibria are stationary. In the relevant parameter range, the introduction of debt can eliminate cycles and increase the long-run growth rate. No rat race equilibria exist when debt is allowed.Received: 3 January 2002, Revised: 3 June 2004, JEL Classification Numbers: 041, J24, O33. Correspondence to: Ian P. KingEarly versions of this paper were presented at the West Coast Macro Workshop, the Mid-West Macro Meetings, the Canadian Macroeconomics Study Group Meetings, and the Society for Economic Dynamics Meetings. We would like to thank V. V. Chari, Merwan Engineer, Don Ferguson, John Hillas, John Knowles, Dan Peled, Dan Usher, Linda Welling and Julian Wright for helpful comments. We are especially grateful to an anonymous referee for some very useful and substantive comments.     

现代建筑及室内设计中传统文化的体现

针对当前一些现代建筑及室内设计中传统文化的展示流于表面化庸俗化的现象,提出对传统文化的一点看法,并认为应在深入了解传统文化的精髓之后,在设计中避免这一倾向.     

会计计量与企业债券信用评级关系的应用分析——基于2006年新会计准则的思考

企业债券信用评级是企业发行债券的重要步骤,债券评级对会计信息具有依赖性,而会计信息的计量属性会直接影响会计信息,不合适的会计计量属性会对债券评级造成负面影响。本文结合2006年的新会计准则的相关规定和企业债券信用评级的特点,通过分析会计计量对信用评级的误导因素,认为借鉴国际先进经验,可以提高债券评级的可靠性和客观性,促进企业融资市场的公平性和公正性。     

上海A股市场股价波动相互影响能力实证研究

股票市场中股票价格的波动是相互影响的,但不同的股票其价格波动时对其他股票价格行为的影响能力是不同的。本文通过对我国上海A股市场的实证分析表明,有少数股票其价格波动时对其他股票价格行为有很强的影响能力,而大多数股票的这种影响能力很小。此外,单个股票价格波动时引起其他股票价格涨、跌的能力一般都有显著差异。     

An instrumental variable approach for panel unit root tests under cross-sectional dependence

For dynamic panel models with cross-sectional dependence, several unit root tests are constructed using a Huber-type instrument, whose null asymptotics are standard Gaussian and do not depend on nuisance parameters. A Monte-Carlo simulation shows that the proposed tests have better sizes and comparable powers relative to other two existing tests developed for cross-sectionally dependent dynamic panel models.     

"No fear" fund raising

Successfully asking for a major gift requires practice. We only raise major gifts by asking and that requires us to get out there in front of major gift prospects. We must discipline ourselves to do just that. Being a successful major gift fund raiser requires continual practice.     

长江三角洲地区跨国公司营运趋势与对策研究

该文以长江三角洲地区跨国公司为研究对象,分析了近年来这一地区跨国公司投资总量、投资来源、投资产业、投资方式等营运变化趋势,在此基础上提出长江三角洲地区进一步吸引跨国公司投资的对策。     

技术差距模型与中非合作的利益分配

近年来,随着中国经济实力的增强和非洲国家经济贸易地位的提升,中非经贸关系发展迅速.双方经济联系趋向紧密,意味着发生经济摩擦的几率加大.最近两年,一些非洲国家与中国的贸易争端有增长之势,成为一些西方舆论制造"中国新殖民主义"的口实.本文运用技术差距国际贸易模型,分析了中非合作在国际贸易利益分配方面的动态变化,旨在为反驳"中国新殖民主义"论提供一定的理论支持,同时提示中国在合作中须保持一定的技术优势.