Optimal redistributive capital taxation in a neoclassical growth model

This paper provides a counterexample to the simplest version of the redistribution models considered by Judd (1985) in which the government chooses an optimal distortionary tax on capitalists to finance a lump-sum payment to workers. I show that the steady-state optimal tax on capital income is generally non-zero when the capitalists’ utility is logarithmic and the government faces a balanced-budget constraint. With log utility, agents’ optimal decisions depend solely on the current rate of return, not any future rates of return or tax rates. This feature of the economy effectively deprives the government of a useful policy instrument because promises about future tax rates can no longer influence current allocations. When combined with a lack of other suitable policy instruments (such as government bonds), the result is an inability to decentralize the allocations that are consistent with a zero-limiting capital tax. I show that the standard approach to solving the dynamic optimal tax problem yields the wrong answer in this (knife-edge) case because it fails to properly enforce the constraints associated with the competitive equilibrium. Specifically, the standard approach lets in an additional policy instrument through the back door.     

Optimal income taxation in models with endogenous fertility

This paper studies the efficient taxation of factor income in infinite-lived models with elastic fertility choices. Two models are considered, one with physical capital only, and one with physical and human capital. In the model with physical capital only, capital income should be subsidized, while labor income taxed. In the model with two types of capital, instead, Ramsey optimality prescribes that the tax on physical capital is zero (negative), if effective labor is constant (decreasing) returns to scale in human capital and market goods, while the tax on human capital is negative and the tax on effective labor positive. Our findings depart from those obtained in immortal models with an endogenous labor supply and constant population growth, because physical and human capital affect the demand for fertility.     

Trade integration and regional income disparities in a growth model with the service sector and footloose capital

This paper proposes a North–South growth model of endogenous industry location which is consistent with recent empirical work showing that regional income disparities have increased in many countries with the process of trade integration. The model incorporates a service sector that benefits from intersectoral knowledge spillovers from the manufacturing sector. We find that, when these spillovers are local, trade integration leads to an increase in interregional real income inequality.     

Effects of subsidies on growth and welfare in a quality-ladder model with elastic labor

This paper develops a quality-ladder growth model with elastic labor supply and distortionary taxes to analyze the effects of different subsidy instruments: subsidies to the production of final goods, subsidies to the purchase of intermediate goods, and subsidies to research and development (R&D). Moreover, the model is calibrated to the US data to compare the growth and welfare implications of these subsidies. The main results are as follows. First, we analytically show that an optimal coordination of all instruments attains the first-best outcome. Second, in the calibrated economy, we numerically find that for the use of a single instrument, R&D subsidy is less growth-enhancing and welfare-improving than the other subsidies, whereas for the use of a mix of two instruments, subsidizing the production of final goods and the purchase of intermediate goods is most effective in promoting growth but least effective in raising welfare.     

Efficiency‐adjusted public capital,capital grants,and growth

A debate on whether capital grants, and especially European Union (EU) funds, actually contribute to growth has gained prominence lately. This article empirically assesses the relationship between the quality of public investment, capital grants, and growth in a sample of 43 emerging and peripheral economies over 1991–2015. To this end, the contribution of public capital to growth is estimated using efficiency‐adjusted public capital stock series, which reflects the quality of public investment management institutions. In addition, the determinants of effective public investment are analyzed. The results suggest that capital grants contribute positively to effective public investment, and the latter is significant in explaining variations in economic growth. Finally, the article illustrates the impact of raising EU funds absorption on potential growth in emerging and peripheral EU countries.     

Spatial income and public capital: a case of a Spanish region

The objective of this paper is to analyse major determinants of disposable per capita income at a local municipality level for a territory of Spain: the Valencian region. A cross-sectional spatial study for an averaged period (2010–2013) will allow us to control for intraregional correlation, paying special attention to the role of real public investment and its possible effects on disposable personal income. A reference framework for economic and social policymakers will be provided by the specification of the model.     

Optimal fiscal policy in an endogenous growth model with public capital: a note

This note presents an investigation of the optimal tax rule in endogenous growth models with public capital. It is presumed that the government levies only an income tax in addition to financing public investment. Furthermore, a household’s saving is deducted from the income tax. We find the optimal tax rule whereby the social optimum is attainable. The manner by which a government imposes a tax on income and administers tax deductions is important for attaining a socially optimal situation.      

Top marginal taxation and economic growth

The article explores the relationship between top marginal tax rates on personal income and economic growth. Using a data set of consistently measured top marginal tax rates for a panel of 18 OECD countries over the period 1965–2009, this article finds evidence in favour of a quadratic top tax–growth relationship. This represents the first reported evidence of a nonmonotonic significant relationship between top marginal income tax rates and economic growth. The point estimates of the regressions suggest that the marginal effect of higher top tax rates becomes negative above a growth-maximizing tax rate in the order of 60%. As top marginal tax rates observed after 1980 are below the estimated growth-maximizing level in most of the countries considered, a positive linear relationship between top marginal tax rates and GDP growth is found over the sub-period 1980–2009. Overall, results show that raising top marginal tax rates which are below their growth maximizing has the largest positive impact on growth when the related additional revenues are used to finance productive public expenditure, reduce budget deficits or reduce some other form of distortionary taxation.     

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。     

Population and economic growth with human and physical capital investments

We present a two-sector endogenous growth model with human and physical capital accumulation to analyze the long-run relationship between population growth and real per capita income growth. Formal education and investment in physical capital are assumed to be two separate components of human capital production. Along the balanced growth path equilibrium, population change may have a positive, negative, or else neutral effect on economic growth depending on whether physical and human capital are complementary/substitutes for each other in the formation of new human capital and on their degree of complementarity.

On capital accumulation paths in a neoclassical stochastic growth model

Summary. Boldrin and Montrucchio [2] showed that any twice continuously differentiable function could be obtained as the optimal policy function for some value of the discount parameter in a deterministic neoclassical growth model. I extend their result to the stochastic growth model with non-degenerate shocks to preferences or technology. This indicates that one can obtain complex dynamics endogenously in a wide variety of economic models, both under certainty and uncertainty. Further, this result motivates the analysis of convergence of adaptive learning mechanisms to rational expectations in economic models with (potentially) complicated dynamics. Received: June 21, 1996; revised version: October 31, 1996     

Economic growth as a function of human capital,internet and work

The World Bank has suggested the need to enhance Information and Communication Technology skills in all sectors because a 10% increase in internet connectivity was found to boost GDP growth by 1.38%. Simultaneously, the OECD argued that high internet access rates generate a 2% increase in GDP. Because the internet positively affects economic growth, we investigated the relationship between an economically active population, human capital and technology to evaluate these effects in Mexico. A data series from 1991 to 2010 was analysed in three stages according to the least-squares method. A Cobb–Douglas function under the Solow model was considered. Technology and internet access were found to positively affect top-level students and graduate students and thus contribute to the global innovation index.     

Culture and human capital in a two-sector endogenous growth model

Recent literature in the field of cultural economics highlights a possible inversion in the usual causality relation (from economic growth to culture) and points out that culture may represent an important driver of economic growth. By viewing culture in line with Throsby’s (2001) definition of cultural capital (i.e., an asset of tangible and intangible cultural expressions), in this article we analyze one possible channel through which culture may positively affect economic growth, namely the existence of a relationship of complementarity between cultural and human capital investments. Using a two-sector endogenous growth model, we find that in the long run a higher growth rate of real per-capita income can be attained the more cultural and human capital investments are complementary for each other in the process leading to agents’ skill acquisition. We also analyze the conditions under which an increase of the cultural capital share in total GDP can be conducive to a rise of real per-capita income.     

Causality between exports,world income and economic growth in Pakistan

This paper investigates the direction of causation between GDP representing economic growth, exports and its different categories, imports and world income. After experiencing vigorous import-substitution in the past decades, Pakistan adopted an outward-looking strategy in the late 1980s with an emphasis on export promotion. A strong and stable relationship between GDP and exports and bi-directional causality between manufactured exports and GDP has been found. Export promotion policy is pursued consistently with an emphasis on manufactured exports and this is most likely to contribute adequately to economic growth in the long run.     

International investment in a model of stochastic growth and development traps

This paper investigates the effects of financial integration in a stochastic endogenous growth model of two economies in which heterogeneous agents face fixed costs of productive investment. The removal of investment barriers may enable a poor country to escape from a state of low and unstable growth by leading to large capital inflows and by raising the number of agents who invest in productive capital. However, since the two economies are characterized by increasing returns to capital and since financial integration may lower the saving rate, it is also possible that both countries' growth prospects worsen.     

In search of thresholds in the household income inequality–growth relationship

This paper investigates the shape of the relationship between household income inequality and economic growth. More precisely we search for the existence of threshold values in this relationship by employing a dynamic panel smooth transition regression model to account for potential endogeneity problems. We find that there do exist threshold values (that are different for different groups of countries): below the threshold, household income inequality is growth enhancing, while above the threshold, inequality has a negative or no effect on economic growth.     

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。     

The relation between capital formation and economic growth: evidence from sub-Saharan African countries

This paper examines the causal relationship between capital formation and economic growth in Sub-Saharan African countries using recent panel cointegration and causality testing techniques. We find that causality is bi-directional, suggesting that higher economic growth leads to higher capital formation and that in turn, increases in capital formation results in higher economic growth. These results hold irrespective of whether capital formation is measured with private fixed capital formation or by gross capital formation.     

A refinement of the relationship between economic growth and income inequality

There is mixed evidence in the literature of a clear relationship between income inequality and economic growth. Most of that work has focused almost exclusively on developed economies. In what we believe to be a first effort, our emphasis is solely on developing economics, which we classify as high-income and low-income developing countries (HIDC and LIDC). We make such distinction on theoretical and empirical grounds. Empirically, the World Bank has classified developing economies in this manner since 1978. The data in our sample are also supportive of such classifications. We provide theoretical scaffolding that uses asymmetric credit constraints as a premise for separating developing economies in such a way. We find strong evidence of a negative relationship between income inequality and economic growth in LIDC to be in stark contrast with a positive inequality–growth relationship for HIDC. Both correlations are statistically significant across multiple econometric specifications. Using international data from 1960 to 2010, this article explores the effect of income inequality on economic growth using dynamic panel technique, such as system generalized method of moments (GMM) that is believed to mitigate endogenous problem. These results are strikingly contrasting to the previous estimation results of Forbes (2000) displaying significant positive correlation between two variables in the short to medium term.     

Social norms and economic growth in a model with labor and capital income tax evasion

Empirical evidence suggests that low-income countries are characterized by high levels of labor and capital income tax evasion while the opposite is true for high-income countries. This paper proposes a model to study the relationship between economic growth and both types of income tax evasion. We show that the existence of a social norm towards tax compliance generates a complementarity between capital and labor income tax evasion which explains the decline of both the share of evaders in the population and the amount of tax evasion when countries accumulate capital. The model predicts that the level of tax morale is positively correlated with both types of income tax evasion and the level of income per capita, consistent with recent empirical evidence. Finally, a higher tax rate increases the share of evaders in the population and aggregate tax evasion.