Public investment and private capital formation in a vector error-correction model of growth

Most of the literature dealing with the impact of public investment on private capital formation and economic growth focuses either on cross-section or static analysis. However, investigation of the long-run dynamic interactions between private and public investment and growth is much more insightful for public policy aiming at the determination of the appropriate size of its public sector. This paper extends the model of Barth and Cordes (1980) and uses multivariate cointegration techniques to develop a vector error-correction model useful for investigating the long-run effects of public investment on private capital formation and economic growth. We apply our methodology to a developing country implementing the IMF debt-stabilization programmes and show how, in this country, public investment is having a negative short-run impact on private investment and a negative long-run impact on both private investment and economic growth.     

后危机时代中国经济增长的稳态路径研究——基于四万亿投资冲击下的偏离与均衡分析

四万亿投资虽已接近收官,但投资对经济的影响远没有结束,后危机时期经济调整任务艰巨而且复杂。基于Ramsey-Cass-Koopmans模型探究四万亿投资对经济稳态路径的调整作用后发现,四万亿投资冲击在经济危机中起到了较好的熨平周期的作用,在投资冲击下经济均衡恢复的半衰期为20.6年;四万亿投资的筹资方式、投资方向将对经济增长的均衡路径形成不同影响,更多吸纳民间资本和科学的投资方向能提高经济的均衡福利水平。     

风险投资对企业研发投入的影响

如何有效发挥风险投资对企业研发投入的促进作用,是当前研究的热点。以2010-2017年北京上市公司为实证样本,发现风险投资对研发投入的影响在面板数据中不显著,但在截面数据中正向显著。在截面回归中引入年度虚拟变量或行业虚拟变量后,发现面板数据中的行业异质性是导致风险投资对研发投入影响不显著的重要原因。为此,对样本数大于30的12个行业进行实证检验,结果显示风险投资对制造业、计算机通信及其它电子设备制造业等3个行业研发投入的影响为正,而对租赁和商务服务业等2个行业研发投入的影响为负,该结论在引入正向影响虚拟变量D1和负向影响虚拟变量D2的回归中仍然成立。进一步分析发现,政治关联在风险投资对企业研发投入的影响中具有反向调节作用。最后,根据研究结论提出政策建议。     

社会资本的经济增长效应

全面而准确地探究社会资本对长期经济增长的影响机制,对提升社会资本在区域经济发展中的地位具有重大的现实意义,但传统的内生增长模型忽略了时间配置对社会资本积累与居民效用的影响.文章将社会资本积累过程内生化,构建了纳入社会资本的水平创新增长模型,综合考虑社会资本和闲暇时间对经济增长的非单调性影响,通过数值模拟发现:社会资本对经济增长具有边际效应递减的促进作用;而闲暇时间与经济增长之间呈现倒U形关系,即适当地增加闲暇时间有利于社会资本积累.文章还基于结构型社会资本的网络嵌入性特征,构建了地级市层面的社会资本测度指标,以验证社会资本具备生产要素的属性.实证结果表明:社会资本对经济增长具有显著的正向影响,其促进作用随着区域内城市经济发展水平的提高而提升;中西部地区社会资本的产出效率高于东部地区,从而间接反映了东部地区社会资本过度集聚的现状;投资水平与技术进步是社会资本影响经济增长的两条重要途径.上述结论为明晰社会资本的经济属性、激发社会资本的经济效益、推动城市集群协调发展以及缩小地区差异提供了有益的借鉴.     

Regional analysis of the impact of inward foreign direct investment on economic growth in the Chinese electronic industry

This article empirically investigates the impact of inward foreign direct investment (FDI) on regional economic growth in the Chinese electronic industry (CEI). Utilizing a provincial-level panel data spanning the period 1989 to 2009, we specify and estimate an endogenous economic growth model for the CEI. Empirical results indicate that, for the coastal region, FDI inflows have been growth enhancing, while in the central and western regions the impact of FDI on economic growth is mixed, depending on the channel of capital flow. Results also indicate that exports, human capital, science and technology investment and fixed asset investment are growth enhancing, while unemployment and foreign R&D investment are growth impeding in the CEI.     

风险投资进入时机、外部环境与企业创新投入

在我国经济进入高质量发展阶段，探究在不同外部环境下风险投资进入时机对企业创新投入的影响具有重要意义。以2010—2019年沪深两市首次公开上市的A股公司为样本，运用异方差稳健OLS模型和Logit模型，研究风险投资进入时机对企业创新投入的影响，并进一步探讨我国不同外部环境的调节效应，结果发现：①VC早期进入能够显著促进被投企业创新能力提升，表现为企业研发投入强度显著提升；②企业所在地区市场化程度越高，风险投资进入时机越早，越能提升企业创新投入和创新能力；③企业所在行业竞争水平越高，风险投资进入时机越晚，越能提升企业创新投入和创新能力。     

政府公共资本投资的长期经济增长效应

本文首先建立一个包含政府公共资本投资的两部门内生增长模型,并把公共资本投资分为政府物质资本投资和人力资本投资,从而对公共资本投资的长期经济增长效应进行理论分析。结论是,两种形式的公共资本投资对长期经济增长都可能具有正效应也可能具有负效应,取决于民间经济主体消费跨时替代弹性大小。其次,我们利用向量自回归分析框架,对我国1978—2004年间公共资本投资对长期经济增长的影响作实证分析。结论是,我国两种形式的公共资本投资与经济增长之间存在着长期均衡关系,其中政府公共物质资本投资对长期经济增长的正影响更为显著,而政府公共人力资本投资对长期经济增长的正影响较小,且在短期内不利于经济增长。这一结论对我国今后科学制定财政政策和选择公共投资领域都具有重要意义。     

Population and Economic Growth Under Different Growth Engines

Using a growth model with physical capital accumulation, human capital investment and horizontal R&D activity, this paper proposes an alternative channel through which an increase in the population growth rate may yield a non‐uniform (i.e., a positive, negative, or neutral) impact on the long‐run growth rate of per‐capita GDP, as available empirical evidence seems mostly to suggest. The proposed mechanism relies on the nature of the process of economic growth (whether it is fully or semi‐endogenous), and the peculiar engine(s) driving economic growth (human capital investment, R&D activity, or both). The model also explains why in the long term the association between population growth and productivity growth may ultimately be negative when R&D is an engine of economic growth.     

资本性支出分权、公共资本投资构成与经济增长

本文建立一个财政分权框架下的两部门内生增长模型,从理论上分析最优公共资本投资配置及其对经济增长的影响,并以我国全国和省份经济数据为基础对本文理论分析进行实证检验。分析表明,我国公共资本投资构成不尽合理,全国和地方公共物质资本投资比重明显偏低;中央和地方政府间公共资本投资事权划分也欠妥,资本性支出分权水平明显过高。这些结论对于我国今后财政政策的合理调整、政府间事权的科学划分具有重要意义。     

人力资本投资结构与经济增长——基于包含教育资本、健康资本的内生增长模型理论研究

文章针对已有的关于人力资本投资的理论研究往往只关注于人力资本投资数量而忽视人力资本投资结构的现状,把教育和健康看作两种资本,分析了人力资本投资结构的具体构成形式。假设人力资本由教育资本和健康资本按照Cobb-Douglas生产技术形式组合生成,在扩展MRW模型的基础上,文章构建了一个内生经济增长模型。分析结论表明人力资本投资结构制约着经济增长,人力资本投资结构和数量(存量)都对经济产生重要影响。     

Decentralization,social capital,and regional growth: The case of the Italian North-South divide

This paper aims to show how a region's constant level of social capital may have a very different impact on its economic growth depending on whether the central or the local level of government is responsible for regional policy.Our case study is the economic performance of Northern and Southern Italy in the post-World War II period, when a long phase of regional convergence came to a sudden halt in the early 1970s. We focus on the economic effects of the 1970s institutional reforms on government decentralization and wage bargaining. Our main hypothesis is that decentralization allocates the provision of public capital to institutions, the local ones, more exposed to a territory's social capital. Since social capital is lower in the Southern regions, decentralization made their developmental policies less effective from 1970 onwards, and regional inequality increased.We build an endogenous growth model augmented to include the interaction between social capital and public investment as well as the reform of the Italian labour market. We calibrate our model using data of the Italian regions for 1951–71. Our quantitative results indicate that decentralization triggered the influence of local social capital on growth and played a central role in halting the convergence path of the low-social-capital regions.     

产业投资基金真的可以驱动经济结构优化吗——产业基金对经济增长与产业升级驱动程度的PVAR模型分析

在中国经济转型过程中,众多地方政府选择产业投资基金作为优化经济结构的助推工具,但实践中各地方产业基金的投资效果与期望目标存在较大差异,因此需要对产业基金的经济优化效应进行检验。运用诺依曼定理分析产业基金与经济结构优化的互动机制并提出研究假设,采用面板向量自回归模型将经济结构优化表示为经济增长与产业升级,并与产业投资基金进行实证检验。结果表明,产业基金并不是经济结构优化的驱动因素,而只是其结果。一方面,产业基金并不会直接驱动经济增长与产业结构升级,而是通过增加金融投资总量间接作用于经济结构优化;另一方面,产业升级与经济增长会显著吸引产业投资基金。鉴于大量设立产业投资基金对于优化经济结构效果不显著,因而应当重点促进多元金融产业发展、提高企业融资能力、发展多种形式的金融工具。     

美国风险投资金融经济价值问题研究

从美国风险投资发展的历程入手,分析其通过加速技术创新,从而创造宏观经济价值效应、促进就业的重要金融经济贡献,得出以下主要结论:风险投资在国家金融经济领域具有重要地位,它与具有发展潜力的高科技产业紧密地联系在一起,促进了技术创新和专利发明;风险投资与国家宏观经济以及国际竞争力具有长期正相关关系;风险投资与平均年工资水平和劳动生产率之间也存在强正相关关系;风险投资在美国的国家金融经济领域的以上各个方面发挥了及其重要的作用.由此得到启示:在中国经济转型的关键时期,大力发展风险投资已是当务之急,美国风险投资的运作模式能够为更有效地发挥风险投资所应有的金融经济价值提供借鉴.     

Terrorism and the world economy

It has been argued that terrorism should not have a large effect on economic activity, because terrorist attacks destroy only a small fraction of the stock of capital of a country (see, e.g., Becker, G., Murphy, K., 2001. Prosperity will rise out of the ashes. Wall Street Journal October 29, 2001). In contrast, empirical estimates of the consequences of terrorism typically suggest large effects on economic outcomes (see, e.g., Abadie, A., Gardeazabal, J., 2003. The economic cost of conflict: A case study of the Basque country. American Economic Review 93, 113-132). The main theme of this article is that mobility of productive capital in an open economy may account for much of the difference between the direct and the equilibrium impact of terrorism. We use a simple economic model to show that terrorism may have a large impact on the allocation of productive capital across countries, even if it represents a small fraction of the overall economic risk. The model emphasizes that, in addition to increasing uncertainty, terrorism reduces the expected return to investment. As a result, changes in the intensity of terrorism may cause large movements of capital across countries if the world economy is sufficiently open, so international investors are able to diversify other types of country risks. Using a unique data set on terrorism and other country risks, we find that, in accordance with the predictions of the model, higher levels of terrorist risks are associated with lower levels of net foreign direct investment positions, even after controlling for other types of country risks. On average, a standard deviation increase in the terrorist risk is associated with a fall in the net foreign direct investment position of about 5% of GDP. The magnitude of the estimated effect is large, which suggests that the “open-economy channel” impact of terrorism may be substantial.     

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。     

Parental nurturing and adverse effects of redistribution

This paper suggests that if parental nurturing is a dominating force in human capital formation then income redistribution may not promote economic growth. In particular, if, consistently with empirical evidence, parental human capital complements investment in a child’s education and yields increasing returns in the intergenerational production of human capital, income redistribution may have an adverse impact on the growth rate of average human capital. Redistribution shifts resources towards the less educationally-productive families and thus in the presence of credit markets imperfections and increasing returns, it reduces the aggregate level of investment in human capital. Moreover, if the degree of increasing returns is sufficiently large to produce sustained growth, this adverse effect on human capital formation may outweigh the conventional beneficial effects of redistribution that arises from the interaction between a production technology exhibiting diminishing returns and credit market imperfections.     

人口老龄化、公共人力资本投资与 经济增长*

本文利用内生化老龄化的世代交叠模型,探讨了老龄化社会中为了促进经济增长可选择的公共人力资本投资的最优相对规模和结构。本文研究表明,公共人力资本投资相对规模（即占GDP比例）和公共健康支出占比（即占公共人力资本投资比例）均与经济增长呈倒U型关系,且最优值通过老龄化对经济增长的作用表现出来。即当老龄化对经济增长有促进（抑制）作用时,政府促进经济增长的政策是提高（降低）人力资本投资相对规模和公共健康支出占比。基于中国省级面板数据的实证研究发现,老龄化不利于经济增长,公共人力资本投资相对规模及公共健康支出占比偏大,均处在倒U型曲线的下降阶段,分别通过挤出对经济增长更具促进作用的私人投资、公共物质资本投资和公共教育支出而不利于经济增长。本文的政策含义是,政府需提高公共教育支出占比,引导和鼓励更有效率的社会私人资本进行人力资本投资,以逐步降低公共人力资本投资的相对规模。当前公共物质资本投资则需继续加强。     

区域科技投入对经济社会发展水平的影响研究

本文运用主成分分析和因子分析方法评价了2001年～2009年我国30个省、市、自治区(西藏除外)科技投入与经济社会发展的综合水平,并通过面板数据就科技投入对经济社会发展水平的影响进行了分析。结果表明:在科技投入水平上,东部与中、西部地区差距呈现扩大趋势;在人均经济社会总量和环境水平上,科技投入对西部地区影响最大;在经济社会发展综合水平上,科技投入对东部地区影响最大。     

The nexus among foreign investment,domestic capital and economic growth: Empirical evidence from the MENA region

The objective of this paper is to estimate an econometric model for analyzing the interrelationship among foreign direct investment, domestic capital and economic growth in 13 MENA countries by using a ‘growth model’ framework and simultaneous-equation models estimated by the generalized method of moments (GMM) during the period 1990–2010. Our empirical results show that there is bi-directional causal relationship between foreign investment and economic growth, as well as domestic capital and economic growth, and there is uni-directional causal relationship from foreign direct investment to domestic capital for the region as a whole.     

EU Enlargement and Inward FDI

The authors attempt to highlight the effects of the recent surge of FDI in the enlargement states on domestic investment and growth. A similar analysis is carried out for the EU-15 in order to ascertain whether this type of capital inflow has a differential impact in these two regions of the European Union. Empirical analysis, based on dynamic panel data models, suggests the existence of a positive contribution of FDI to greater domestic investment and economic growth in the new member states. The evidence obtained for the EU-15 old member countries confirms the FDI-growth nexus but does not suggest a positive impact of FDI on domestic investment, which would be consistent with these capital inflows being of a different nature for these more advanced economies.