对外直接投资的贸易效应研究--基于中国经验的实证分析

对外直接投资与出口贸易之间的关系一直是相关理论和实证研究的争论主题。运用引力模型,对中国FD I的贸易效应进行实证分析表明:中国对东道国的直接投资促进中国对东道国的出口,但对从东道国的进口却具有替代效应。因此,大力促进中国对外直接投资,是促进中国的对外出口、绕开东道国贸易壁垒的重要途径。     

强自然垄断定价理论与中国电价规制制度分析

强自然垄断行业由于其定价方面的两难困境 ,需要规制者对其产品定价进行规制以在厂商利润与社会福利之间进行权衡。边际成本定价原则并不适合于自然垄断厂商。本文在规制定价理论以及激励规制理论的基础上 ,对中国电力定价问题进行了分析 ,认为电价改革的第一步应在发电环节中引入竞争的基础上 ,对不同效率类型的电力厂商设计不同激励强度的定价机制 ,另外本文尝试着对不同技术效率的电力厂商列出了不同激励强度的价格规制方案菜单     

中国外汇储备投资组合选择——基于外汇储备循环路径的内生性分析

本文从中美两国经济的本质性差异出发,通过刻画中国外汇储备对外投资的"循环路径",构建了包括央行、金融市场和实体经济的斯塔克尔伯格及古诺模型,进而模拟出中国外汇储备对外投资对本国经济的间接贡献、合意的外汇储备投资组合,以及最优外汇储备投资规模。研究结果表明,中国外汇储备投资于美国风险资产的规模将影响外汇储备间接转化为美国对中国FDI的比例。同时,中国央行外汇储备规模及投资策略对危机时期的反应不足。改变外汇储备投资收益的主要方法包括降低居民的相对风险回避系数,通过政策引导促进居民消费,以及大力发展中国金融市场,降低对美国金融市场的依赖程度。     

基于钻石模型对江苏省电子产业的核心竞争力分析

电子产业作为江苏省的支柱产业之一,其发展对江苏省具有重要意义。根据波特的“钻石模型”,从生产要素、需求条件、企业的战略与竞争的时空背景、相关与支持性产业、政府支持、机遇六个方面对江苏省电子产业的核心竞争力进行了分析,以期通过分析,明确江苏省电子产业的地位,为正确制定江苏省电子产业发展战略,提升江苏省电子产业竞争力提供研究基础。     

技术标准对产业竞争力的影响研究

技术标准对经济和产业的发展起到了很大的作用。文章以波特的钻石模型为分析框架,研究技术标准与产业竞争力的关系,探讨技术标准对产业竞争力的影响机理。     

跨国公司知识管理的模式分析

本文根据跨国公司知识来源的不同,把知识管理划分为知识的内部治理和外部治理,并针对不同类型的知识,提炼、归纳出三种跨国公司开展知识管理的模式,即个性化模式、全球化模式和社会化模式。     

积极财政政策宏观经济效益分析——基于宏观计量模型的研究

本文通过一个宏观计量模型来研究积极财政政策的宏观经济效益。与传统模型所不同的是，我们的模型不仅考虑了需求，同时也引入了社会的供给能力。研究表明，积极财政政策的实施为我国在2003年底彻底走出通货紧缩的阴影作出了不可磨灭的贡献。而到了2002年，积极财政政策的拉动效应开始递减，这为此后逐渐淡出的积极财政政策提供了一定的依据。     

Learning of cycles and sunspot equilibria by Genetic Algorithms

We analyze the learning behaviour of a Simple Genetic Algorithm in an overlapping generations model with one consumption good and fiat money. It is shown by simulations, that in cases where periodic equilibria exist the equilibrium of period two is learned by a Genetic Algorithm and not the monetary steady state. We further show that proper coding leads to convergence of the GA towards the sunspot equilibrium. If individuals who believe in the impact of sunspots are brought together with individuals who ignore the sunspots, the sunspot believes will in most cases drive the other individuals out of the population.     

Thermodynamics and process analysis for future economic scenarios

Economists are increasingly interested in forecasting future costs and benefits of policies for dealing with materials/energy fluxes, polluting emissions and environmental impacts on various scales, from sectoral to global. Computable general equilibrium (CGE) models are currently popular because they project demand and industrial structure into the future, along an equilibrium path. But they are applicable only to the extent that structural changes occur in or near equilibrium, independent of radical technological (or social) change. The alternative tool for analyzing economic implications of scenario assumptions is to use Leontief-type Input-Output (I-O) models. I-O models are unable to endogenize structural shifts (changing I-O coefficients). However, this can be a virtue when considering radical rather than incremental shifts. Postulated I-O tables can be used independently to check the internal consistency of scenarios. Or I-O models can be used to generate scenarios by linking them to econometric macro-drivers (which can, in principle, be CGE models). Explicit process analysis can be integrated, in principle, with I-O models. This hybrid scheme provides a natural means of satisfying physical constraints, especially the first and second laws of thermodynamics. This is important, to avoid constructing scenarios based on physically impossible processes. Process analysis is really the only available tool for constructing physically plausible alternative future I-O tables, and generating materials/energy and waste emissions coefficients. Explicit process analysis also helps avoid several problems characteristic of pure CGE or I-O models, viz. (1) aggregation errors (2) inability to handle arbitrary combinations of co-product and co-input relationships and (3) inability to reflect certain non-linearities such as internal feedback loops.     

环境库兹涅茨曲线假说及其在中国的检验

经济与环境协调发展是我国经济发展中的重大课题。本文从环境库兹涅茨曲线假说出发,利用中国各个省市区1989～2004年数据建立面板数据模型,运用固定效应模型和随机效应模型对其进行估计,以此剖析我国经济增长与环境污染水平的演变规律。结果表明,环境库兹涅茨曲线假说在我国并不成立。因此,我国不能盲目重复发达国家"先污染,后治理"的传统模式,而应该走环境与经济持续协调发展的道路。