Short-run and long-run effects of capital taxation on innovation and economic growth

In this study, we examine the effects of capital taxation on innovation and economic growth in an R&D-based growth model. We find that capital taxation has drastically different effects in the short run and in the long run. An increase in the capital income tax rate has both a consumption effect and a tax-shifting effect on the equilibrium growth rates of technology and output. In the short run, the consumption effect dominates the tax-shifting effect causing an initial negative effect of capital taxation on the equilibrium growth rates. However, in the long run, the tax-shifting effect becomes the dominant force yielding an overall positive effect of capital taxation on steady-state economic growth. These contrasting effects of capital taxation at different time horizons may provide a theoretical explanation for the mixed evidence in the empirical literature on capital taxation and economic growth.     

A cost function analysis of import demand and growth in South Africa

This study investigates the substitutability relationships among capital, labor, and imported inputs for South Africa, utilizing the estimates obtained from an aggregate cost function. Our results are consistent with the hypothesis that capital is a substitute for both domestic labor and imports, but that labor and imports are complementary inputs. This latter result suggests that relaxing South African trade restrictions may have a positive impact, in both the long and the short run, on the demand for domestic labor. Other results suggest that the reduction of market impediments may also positively impact the production of investment goods and economic growth.     

Energy consumption, economic growth, and carbon emissions: Challenges faced by an EU candidate member

This paper investigates the long run Granger causality relationship between economic growth, carbon dioxide emissions and energy consumption in Turkey, controlling for gross fixed capital formation and labor. The most interesting result is that carbon emissions seem to Granger cause energy consumption, but the reverse is not true. The lack of a long run causal link between income and emissions may be implying that to reduce carbon emissions, Turkey does not have to forgo economic growth.     

需求要素对中国经济增长影响的实证研究——基于边限检验理论的视角

在建立无约束误差修正模型的基础上，运用边限检验方法对需求要素对中国经济增长影响的实证研究表明，中国经济增长与需求因素之间存在长期稳定关系，需求的不同组成部分对中国经济增长有不同的影响。在长期，只有资本形成总额的影响显著，在短期内，需求各要素对中国经济增长都有显著的影响。     

Capital specificity,imperfect labor mobility and growth in developing economies

Labor markets in developing economies may be afflicted by a multiplicity of interacting distortions. We consider a general equilibrium model of an economy distorted by both sector-specific sticky wages and imperfect mobility of labor. In this framework, we contrast the implications of capital accumulation in the short and long run. We show that, in contrast to both the case in the absence of a sector-specific sticky wage and the case in the absence of imperfect labor mobility, the short and long-run effects of growth on the economic system converge as the degree of labor mobility is limited.     

The Division of Labor, Inequality and Growth

We present a model that links the division of labor and economic growth with the division of wealth in society. When capital market imperfections restrict the access of poor households to capital, the division of wealth affects individual incentives to invest in specialization. In turn, the division of labor determines the dynamics of the wealth distribution. A highly concentrated distribution of wealth leads to a low degree of specialization, low productivity, and low wages. In that case workers are unable to accumulate enough wealth to invest in specialization. Hence, in a highly unequal society, there is a vicious cycle in which the degree of specialization, productivity and wages stay low, wealth and income inequality stays high and the economy stagnates. By contrast, greater equality increases investment in specialization and leads to a greater division of labor and higher long run development.     

人工智能的财富分配效应研究*

人工智能对经济不平等的影响引起学术界的广泛重视，但是现有研究以分析其对劳动收入不平等的影响为主，关于人工智能对财富分配从而对财产性收入不平等影响的相关研究尚有欠缺。本文通过构建一个连续时间异质性个体动态一般均衡模型，将人工智能对生产技术的影响看作一揽子偏向性技术进步，研究人工智能技术对财富分配的影响。分析发现，人工智能对财富不平等的影响在短期和长期表现有所不同，短期中人工智能技术的应用会提高经济中财富分配不平等程度，而长期中其财富分配效应则取决于人工智能对不同类型技术进步的促进程度。核心机制在于，人工智能技术进步的多样性在短期和长期中对资本回报率产生不同影响，短期中各类技术进步总是会提高资本回报率，而在长期，不同类型的技术进步对资本回报率的影响出现差异。基于以上结论，本文就我国如何在应用人工智能促进增长的同时预防不平等程度扩大提出了政策建议。     

货币供给、通货膨胀、经济增长之间关系的实证研究——基于2006～2010年数据的分析

利用我国2006年12月～2010年12的月度数据,在VAR模型的基础上,对我国货币供应、通货膨胀、经济增长之间的关系进行实证分析。研究发现,短期内通货膨胀和经济增长对货币供应量的效应相反;货币供应并不影响通货膨胀和经济增长;经济增长与通货膨胀无关,通货膨胀对经济增长具有正面效应。长期来看,通货膨胀和货币供应量之间正相关;经济增长对货币供应具有负效应,货币供给量的增加促进经济增长,证实我国存在托宾效应;经济增长和通货膨胀之间作用相反,通货膨胀损害经济增长的弗里德曼假说在我国适用。同时得出我国货币供给具有非中性和内生性特点的结论。     

A revalidation of the savings–growth nexus in Pakistan

The aim of this study is to understand the relationship between savings and economic growth in Pakistan over the period 1971–2011. The cointegration and the Granger causality tests are adopted to examine the relationship between the variables. The results confirm the existence of long-run equilibrium among the variables of interest. Meanwhile, savings have positively affected economic growth in both the short run and long run. The Granger results also show that savings Granger-cause economic growth. Based upon these findings, we confirm that savings is a catalyst of growth for the Pakistani economy. Additionally, our results seem more likely to support the capital fundamentalists because the long run estimation as well as the Granger causality results also indicates that savings growth can effectively spur economic growth in Pakistan.     

Is energy consumption effective to spur economic growth in Pakistan? New evidence from bounds test to level relationships and Granger causality tests

The present study investigates the relationship between energy (renewable and nonrenewable) consumption and economic growth using Cobb–Douglas production function in case of Pakistan over the period of 1972–2011. We have used the ARDL bounds testing and Gregory and Hansen (1990) structural break cointegration approaches for long run while stationarity properties of the variables have been tested applying Clemente-Montanes-Reyes (1998) structural break unit root test.Our results confirm cointegration between renewable energy consumption, nonrenewable energy consumption, economic growth, capital and labor in case of Pakistan. The findings show that both renewable and nonrenewable energy consumption add in economic growth. Capital and labor are also important determinants of economic growth. The VECM Granger causality analysis validates the existence of feedback hypotheses between renewable energy consumption and economic growth, nonrenewable energy consumption and economic growth, economic growth and capital.     

前沿技术、吸收能力与中国区域 产业的协同发展*

本文以新增长理论为基础,构建了区域产业与前沿技术差距、区域产业自身发展条件和前沿技术吸收能力的整合空间面板实证分析框架,量化分析了前沿技术、吸收能力和空间外部性引致的产业全要素生产率的收敛机制。研究结论表明：区域产业与前沿技术的差距对于产业的全要素生产率收敛具有显著的促进效应,在短期体现为能够显著的促进区域全要素生产率的增长,长期则表现为存在长期协整关系;前沿技术的吸收能力能够显著地提高全要素生产率;空间溢出效应则进一步强化了这一效应。因此,提升区域产业自身对前沿技术的吸收能力,合理协调区域基础设施、研发创新等空间发展规划,是实现中国区域产业协同发展的有效途径,也有助于实现区域经济协调发展的宏观目标。     

The Development Problem under Embodiment

This paper studies technology adoption in an optimal growth model with embodied technical change. The economy consists of the final good sector, the capital sector, and the technology sector which role is the imitation of exogenous innovations. Scarce labor resources are allocated to the technology and final good sectors. The final good is allocated to consumption and to the capital sector. The authors analytically characterize the long run optimal allocations. Using a calibrated version of the model, they find that an acceleration in the rate of embodied technical change should not be responded by an immediate and strong adoption effort. Instead, adoption labor should decrease in the short run, and the optimal technological gap is shown to increase either in the short or in the long run. The state of the institutions and policies around the technology sector is key in the design of the optimal adoption timing.     

Energy prices, energy conservation, and economic growth: Evidence from the postwar United States

The effects of energy prices and energy conservation on economic growth have been examined empirically for the postwar U.S. economy. A vector autoregressive model includes real GDP, real capital, labor, real energy prices, and the Divisia energy index. A key feature of our finding is that some damaging effects of energy conservation on the macroeconomy are statistically insignificant in the short run, and the insignificant short-run effects are quickly enervated over time. Alternative measures of energy use also suggest that energy conservation has no significant impact on real output growth. The findings are generally consistent with the neoclassical position that real economic growth of the United States is neutral with respect to changes in energy use. One exception is the case that energy prices are omitted from the model.     

中国农村扶贫资金投入与贫困减少的经验分析

本文分别以中国官方贫困线和国际贫困线为标准,利用向量自回归模型就中国政府的农村扶贫资金投入和贫困减少的长、短期关系和Granger因果关系进行了经验研究。结果表明农村扶贫资金对农村贫困减少具有短期的促进作用,但效果不显著。从长期看扶贫资金抑制了农村贫困的减少,但这两者之间不存在Granger因果关系;经济增长与贫困之间的关系比较复杂,经济增长在减少农村贫困人口的同时,加重了贫困深度指数和贫困强度指数。因此,进一步完善农村扶贫资金运行机制、提高扶贫项目的瞄准性,对于解决中国农村贫困问题具有重大意义。     

Trade liberalization and economic growth: a case study of Iran

We estimate the impact of trade liberalization and physical and human capital accumulation on Iran’s economic growth during the period 1959?2007. Using co-integration techniques and a vector error correction model, we find a unique long-run relationship between economic growth and its major determinants. These determinants include the physical and human capital stock, the labor force, real non-oil exports, and import tariffs. In addition, the short-term error correction dynamics analysis suggests that trade liberalization has a significant long run positive role in dynamic of growth. Our results support the view that the integration of the Iranian economy with the world economy is undoubtedly welfare improving.     

Growth,human development,and trade: The Asian experience

This study looks at the three-way relationship between economic growth, human development, and openness to trade in a large panel of developing Asian economies. Using a theoretically motivated simultaneous equations system, we find that although human development contributes positively to economic growth, in the case of our Asian sample growth does not appear to have had a positive influence on human development. Uneven growth accompanied by lagging institutional development, preventing human capital formation, might have inhibited human development in the short to medium run. Complementary to the literature showing that growth is sustainable only when accompanied by human development, we confirm a role for trade liberalisation policies in achieving higher growth as well as human development.     

Income inequality and FDI: evidence with Turkish data

This article explores how foreign direct investment (FDI) and other determinants impact income inequality in Turkey in the short- and long-run. We apply the nonlinear auto-regressive distributed lag (ARDL) modelling approach, which is suitable for small samples. The data for the study cover the years from 1970 to 2008. The empirical results indicate the existence of a co-integration relationship among the variables with asymmetric adjustment of the income distribution in the short- and long-run. The negative impact of FDI on the Gini coefficient, decreasing income inequality, is statistically significant in the short- and long-run, though with a quantitatively small impact in both cases. In the short run, GDP growth increases inequality initially, an effect that is reversed in the next period, increases in domestic gross capital formation decreases inequality, and increases in the literacy rate have very minor adverse effects on income equality. However, in the long run these variables have no statistically significant effects on the Gini coefficient. A reduction in the population growth rate reduces inequality in the short run but has no effect in the long run, whereas an increase in the rate reduces inequality in the long run but has no effect in the short run.     

The causal relationship between equipment investment and infrastructures on economic growth in China

There is agreement in the literature on economic growth concerning the transitory effects of capital accumulation on the process of economic development. However, controversy arises if this effect is permanent. In this sense, the key point is the embodied technological progress and whether supply factors predominate among the determinants of capital accumulation. Only in this case should expect long-run effects of capital accumulation on economic growth. Inspired by this idea, I focus the study on two elements accounting for economic development—equipment investment and productive infrastructure and I also analyze the type of the empirical relationship that exists between them. The results indicate that equipment investment and infrastructures have played a significant role in accounting for long-run growth in China. However, I do not find empirical evidence supporting any relationship between the two types of investment. In addition, I find that foreign trade has stimulated output and equipment investment in the long run. Finally, it is found that innovation activities encourage equipment investment in the long run.     

The influence of capital controls on long run growth: Where and how much?

The financial crisis in East Asia generated a revival of interest in the merits of financial openness. The ensuing debate on the benefits of openness has focused more on short and medium run issues than on the long run effects. Within the empirical literature on economic growth, little or no attention has been paid to the effects of financial openness. Contrary to the orthodox position, the few results that exist suggest that capital controls have no effect on economic growth. This paper argues that this conclusion emerges from a failure to account for underlying differences across countries with similar degrees of capital controls. We show that the degree of ethnic and linguistic heterogeneity in a country plays a significant role in explaining the effects of controls on economic growth. For countries with relatively higher degrees of ethnic heterogeneity, the effects are particularly adverse whereas for countries with high degrees of homogeneity, capital controls actually have a net positive effect on economic growth. On balance, more developing countries suffered due to controls than not. Within the sample of 57 non-OECD countries that did implement controls for the period 1975–1995, as many as 39 saw a reduction in their growth rates. This result is robust to a number of variables commonly used in the economic growth regressions.     

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。