投入产出乘数模型与其扩展方法

在投入产出模型里引入凯恩斯乘数理论，建立能够计算结构化乘数的投入产出乘数模型，是近年来投入产出领域探讨较多的一个问题。从前提假设、乘数效应的传导机制和最终推导结果等方面对凯恩斯乘数模型和投入产出乘数模型进行比较，指出建立投入产出乘数模型将凯恩斯乘数进行结构化处理，应该从放宽前提假设条件入手，并以引入列向旁侧效应为例对原模型进行了扩展。     

Evaluating Projects and Assessing Sustainable Development in Imperfect Economies

We are interested in three related questions:(1) How should accounting prices be estimated?(2) How should we evaluate policy change in animperfect economy? (3) How can we check whetherintergenerational well-being will be sustainedalong a projected economic programme? We do notpresume that the economy is convex, nor do weassume that the government optimizes on behalfof its citizens. We show that the same set ofaccounting prices should be used both forpolicy evaluation and for assessing whether ornot intergenerational welfare along a giveneconomic path will be sustained. We also showthat a comprehensive measure of wealth,computed in terms of the accounting prices, canbe used as an index for problems (2) and (3)above. The remainder of the paper is concernedwith rules for estimating the accounting pricesof several specific environmental naturalresources, transacted in a few well knowneconomic institutions.     

Economic liberalization and welfare in a model with an informal sector

The paper reexamines the conventional results relating to inflow of foreign capital, removal of protectionism and structural reform programmes, in a small open economy in terms of a two-sector general equilibrium model with an informal sector. The paper shows that in the presence of labour market distortion and a protectionist policy, inflow of foreign capital may be desirable irrespective of the pattern of trade of the economy due to its favourable impact on welfare. But the welfare implications of tariff reductions and/or structural adjustment programmes, such as deregulating the formal sector labour market, depend crucially on the economy's trade pattern. The paper provides an answer to the question as to whether in a developing economy labour market reform and tariff reform should go hand-in-hand or whether one should precede the other for welfare improvement.
JEL classification: F10, F13, F21, O17.     

Structural Decomposition Analysis of Physical Flows in the Economy

Many environmental problems can be attributedto the extraction and emissions of physicalsubstances. Increasing our understanding of theeconomic and technological driving forcesbehind these physical flows can contribute tosolving the environmental problems related tothem. The input-output framework is a usefulsetting in which to integrate detailedinformation about economic structure andphysical flows. In this article a specificmethod in input-output analysis is reviewed,namely Structural Decomposition Analysis (SDA).It is based on comparative static analysis,which decomposes historical changes of a policyvariable into determinant effects. SDA has beenapplied, for example, to analyze the demand andtechnological driving forces of energy use,CO₂-emissions and various other pollutantsand resources. This article examines thetheoretical aspects of structuraldecomposition, in particular those concerningphysical flows and environmental issues.Furthermore, the article includes an extensivesurvey of empirical studies.     

经济增长、结构调整的累积效应与资本形成——当前经济增长态势分析

1990年以来 ,特别是 2 0世纪 90年代中后期 ,中国的经济结构发生了重大调整 :基础设施的投入奠定了城市化的基础 ,工业化在消费和出口的拉动下逐步升级。中国经济增长开始由工业化单引擎发展到工业化与城市化的双引擎。由低价工业化到高价城市化的转化以及与之相应的资金流程与资本形成方式的变化 ,一方面引起近年来中国经济的快速发展 ,另一方面也对未来中国经济的持续增长形成挑战。通过政府体制、金融体系和财税体制的进一步改革 ,完善资源配置方式 ,将是应对挑战、保持中国经济持续增长的保证。     

对我国经济增长方式转变的新思考

我国经济增长方式长期存在着由粗放型向集约型转变的困扰,表现为经济增长过度依赖于投入的增加,生产技术水平偏低,劳动者素质结构改善缓慢,经济比例关系没有理顺,产业结构不合理现象突出等。转变增长方式的关键在于增强国内自主创新能力,调整和优化产业结构,以科技进步推动经济增长由低质低效向高质高效的转化,以产业结构的调整和优化保障增长目标的实现。     

西部地区经济结构优化之我见

本文在对西部地区经济结构现状及其对经济效益的影响进行分析的基础上 ,提出了调整和优化经济结构的对策与思路 ,为有关部门和政府当局提供一些借鉴与参考     

基于投入产出与解释结构建模法相结合的产业关联及层次识别建模

将投入产出方法与解释结构建模相结合,取长补短,提出了基于这两种方法相结合的产业关联层次识别的分析方法,并呈现了该方法的算法步骤、识别层次结果的基本特性以及其与以往产业关联分析方法的比较优势.最后以经统一调整的1997及2002年投入产出表为基础,对我国国民经济产业关联的层次识别进行实证分析,经对识别结果的跨期对比分析,证明该识别方法的解释效果良好.     

产业结构、就业贡献率与就业增长——基于云南省第三产业的实证

通过产业结构偏离度的分解和比较,对云南第三产业就业进行实证分析,较充分论证了云南第三产业还有很大的吸纳就业的潜力,并指出了就业有效增长的第三产业内部行业的选择.研究表明:(1)近10年,云南一、二、三产业的就业贡献率分别为27.8%、2.2%、69.9%,新增就业岗位的69.9%由第三产业提供,第三产业产值每增长1个百分点,平均增加就业岗位就达1.56万个,比第二产业多0.9万个;(2)云南第三产业在发展的同时没有充分发挥其吸纳就业的能力,还有很大的就业吸纳空间;(3)批发零售贸易餐饮业、社区服务业将是云南第三产业扩大就业的主要行业,而交通运输仓储及邮电通信业则很难有较大吸纳就业的空间.     

国际证券市场联动程度的实证分析

20世纪80年代以来,通过国际证券投资分散风险已经形成一种可行手段,然而,随着全球经济一体化趋势的强化,国际证券市场也正在经历着一体化趋势,证券市场联动关系越来越明显,这必然会使国际投资多样化空间变小,进而会侵蚀掉国际多样化投资收益.有鉴于此,本文使用协相关参数分析、平稳性检验、多元协整检验、协整向量参数零配载限制检验、基于VECM的Granger因果性检验等计量技术测度国际证券市场联动程度,为国际证券投资提供量化参考.