非线性增长与经济增长动力转换

采用时变马尔科夫区制转换模型,分析了不同投入要素在不同经济增长阶段对经济增长贡献的差异,以及影响经济在不同区制之间跃迁的关键因素。研究发现:在三类经济增速区间内,人力资本投入对经济增长的拉动效应最强,在推动经济从中速增长向高速增长转移的过程中发挥重要作用;帮助经济跨越"中等收入陷阱"的关键在于提高物质资本和人力资本投资的匹配度,使物质资本和人力资本的流动与产业集聚和城市化发展一致、与技术创新能力提升配合;渐进式转型有利于平滑增长路径,降低向高收入均衡收敛的临界值。     

信贷约束、再分配及不平等对增长的影响

当信贷对那些禀赋较少的当事人是完全可获取时,再分配对长期增长无影响.当信贷不可得时,再分配可以促进经济增长.富人与穷人之间的不平等程度越高,越容易刺激穷人掠夺富人的财富,并牺牲了总的投资与增长.恰当的再分配政策设计可以有利于禀赋少者并促进总的产出,并使社会朝着增长与和谐的方向努力.     

人力资本投资对经济增长的影响--以河南与全国对比为例

有关一国或地区经济增长中人力资本投资的作用,学术界早已有所认识,当前的问題是如何把人力资本投资对经济增长的影响用定量的形式表现出来,其中变量参数的选择已成为理论界研究的重点。本文以人力资本存量为主要参数,通过构建模型,与全国进行对比分析,发现河南人力资本投资对经济增长的贡献远低于物质资本投资对经济增长的贡献,人力资本投资与物质资本投资缺乏规模经济性,人力资本投资促进经济增长的潜力较大。为使河南经济社会走上可持续发展道路,必须确立科学的发展观,加快以实物资本投资为主向人力资本投资与物质资本投资相协调方向转变,只有这样,才能高质量地实现河南在中原崛起。     

Critical remarks on Piketty’s Capital in the Twenty-first Century

This article discusses the central macroeconomic claims that are made in Thomas Piketty’s book Capital in the Twenty-first Century. The article aims to show that Piketty’s contentions are not only logically flawed but also contradicted by his own data.     

Who is afraid of capital mobility? on taxation of labor income and the level of public services in an open economy

This paper deals with the effects of international capital mobility on the taxation of labor income and on the size of the public sector. It employs a model of the labor market where national trade unions set the wage level in their country and national governments set the tax rate of a proportional labor-income tax. The tax revenues are used to finance a public good and unemployment benefits. In this model, competition between the national trade unions caused by international capital mobility leads to full employment, and the governments supply the public good on the first best level. As no unemployment benefits have to be financed, the tax on labor income may decline with the introduction of capital mobility. These tax cuts may even overcompensate the unions for the wage decline.     

我国人力资本投资对经济增长作用的实证研究

我国作为世界上的大国,拥有世界1/5的人口,但是资源的稀缺约束着我国的发展。不过,我国所具备的充裕人力劳动资源是不可忽视的优势,若能将人力资源转化为人力资本,必定会推动我国经济进一步发展。通过计量经济学分析模式,剖析了我国人力资本投资对经济增长的贡献作用,阐明了人力资本投资对经济增长的促进作用。并就如何加强我国人力资本投资与建设提出了建议。     

公共资本、税收与长期经济增长

基于两部门增长模型,通过参数化和数值模拟估算了我国税收政策的宏观经济效应及公共资本拥挤性、资本利用效率和外部性对税收政策效应的影响。研究表明,降低资本所得税更有利于经济增长和福利水平改善;基于福利最大化视角,应对劳动进行补贴,对资本减税;公共资本拥挤性强化了资本所得税的减税效应,但不利于福利水平改善,对劳动所得税减税效应影响不大;公共部门资本生产效率和公共资本外部性对减税政策效应具有非对称性影响。     

中国信息技术投入经济价值测度实证分析

随着我国在IT资本上的大规模投入,测量这种大规模投入产生的经济价值具有重要意义。根据中国1990-2004年数据,运用经济计量学的方法,建立经济增长与要素增长的线性回归模型,对我国IT经济价值进行实证分析,并根据实证结果对我国未来投资提出建议。     

经济增长模型中的公共资本*

关于公共资本与经济增长关系的理论研究在近二十年来取得了长足进步。本文提供了一个一般性分析框架,将公共资本与经济增长领域的众多研究成果统一在该框架中进行了系统梳理,从而清晰呈现了其理论发展脉络。首先,本文在基本模型中探究了该领域内学者普遍关心的核心问题,这些问题包括增长率最大化与社会福利最大化公共投资规则以及最优与均衡转移路径等。然后,通过逐个放宽基本模型的假设,本文考察了主要结论在扩展模型中是否依然成立。具体而言,本文分别在公共资本具有拥挤性而非纯公共产品性质,公共资本折旧率内生决定而非外生给定,公共投资同时以流量与存量形式而非仅以存量形式影响私人生产以及存在多级政府而非仅一级政府的假设下,对模型结论进行了检验。本文探讨了这些更反映现实的假定对结论产生的不同影响,并进而指出该领域所面临的挑战与未来可能的发展方向。     

基于教育人力资本投资视角的陕西经济增长问题分析

人力资本投资和积累对促进就业起重要作用,而就业是带动经济增长的重要条件。以柯布—道格拉斯函数为基础建立生产函数模型,选择教育经费作为人力资本投资的衡量标准,对陕西省1996—2010年的数据进行回归分析,并对回归结果进行检验,计算得出基于教育的人力资本投资对经济增长的贡献,在此基础上提出促进就业发展经济的相关对策。     

A Positive Theory of Income Redistribution

This article examines how redistribution of human capital expenditure can come about voluntarily. A model is developed in which, in the absence of redistribution, human capital expenditure is financed through tax revenue collected locally. However, circumstances are shown under which transfers of human capital expenditure across neighborhoods can take place voluntarily, even in the absence of interfamily altruism. These transfers can eliminate absolute inequality and reduce relative inequality. In addition, the effect on aggregate income of such human capital funding transfers across neighborhoods is evaluated. Empirical evidence supporting the model's implications for the impact of redistribution of human capital expenditure on the persistence of income inequality is presented     

An American-Style Transfer Union in Europe,A First Glance at How Much It Might Cost

Since 1992, the European Union has been reallocating resources among its members through, among others, so-called cohesion funds. However, there is a growing perception among economists and politicians that the scope and magnitude of those transfers is inadequate. In this paper we compare the degree of fiscal transfers in the EU to those in the U.S. and estimate the changes needed to make the EU more like the U.S. Data on American inter-state fiscal transfers show that, on average, the most affluent states consistently make significantly larger payments to the federal government than they receive from it and that the opposite is true for the less affluent states. Our research shows that, unlike in the U.S., fiscal transfers in the EU are not closely related to a member state’s standard of living. We also find that, compared to the U.S., the least affluent nations in the EU receive disproportionally small net payments from the common budget. An American-style fiscal union would require more affluent EU members to make net contributions many times over their actual net payments.     

Does human capital constrain the impact of foreign direct investment and remittances on economic growth in Ghana?

This article empirically investigates whether human capital constrains the impact of Foreign Direct Investment (FDI) and remittances on economic growth in Ghana. An economic growth model for Ghana is specified and estimated using Fully Modified Ordinary Least Squares (FMOLS) estimator and employing annual data spanning the period 1965 to 2008. Empirical results indicate that FDI and remittances are key determinants of economic growth in Ghana. Results indicate that human capital enhances the impact of FDI and remittances on economic growth. Although both government expenditure and trade openness are growth-enhancing, government expenditure appears to crowd-out private investment. Empirical results also indicate that domestic inflationary pressures, unstable political environment and volatile global economy exert a negative impact on economic growth in Ghana.     

Public Capital and Economic Growth: A Convergence Approach

This paper estimates dynamic effects of public capital on output per capita. Based on an open economy growth model, I derive a version of the income convergence equation augmented with public capital. This equation is estimated using panel data of United States and Japanese regions. Sensible results are obtained when public capital is disaggregated into components. In both countries, the infrastructure component of public capital turns out to have significantly positive effects. The implied elasticity of output with respect to infrastructure is somewhere around 0.1 to 0.15. This suggests a modest contribution of infrastructure to postwar growth of the two countries.     

Capital Mobility, Agglomeration and Corporate Tax Rates: Is the Race to the Bottom for Real?

Based on a data set for 19 OECD countries for the period 1981–2001,we estimate the impact of FDI on corporate tax rates, wherechanges in FDI are a measure for changes in capital mobility.So far the literature has been concerned with the related butrather different question as to the sensitivity of FDI to taxrates. Our article takes an opposite perspective and asks whatthe impact of capital mobility is on corporate tax rates. Indoing so, we explicitly take the role of agglomeration intoaccount. In theory, core countries can afford a higher tax ratecompared to peripheral countries. In our estimation strategy,we instrument capital mobility to deal with reverse causality.The main conclusion is that increased international capitalmobility, measured by FDI flows, implies a lower corporate taxrate. But we also find that agglomeration matters: core countrieshave a higher corporate tax rate than peripheral countries.If there is a race to the bottom, it seems that it is more realfor some countries than others. (JEL code: H25)     

论公平经济增长

目前,中国的基尼系数已经达到0.48,超过了收入差距过大的警戒线.居民收入差距过大,可从三个方面影响中国经济的增长:(1)居民收入差距过大通过减少消费需求来减少有效需求;(2)居民收入差距过大导致人们教育投入的不平衡影响经济发展的动力;(3)居民收入差距过大容易导致社会不稳定,影响经济发展的外部环境.我们应该采取相应对策,实现公平经济增长.