教育对地区内收入差距的贡献:来自上海微观数据的考察

作为人力资本的一个度量,教育对于收入差距的贡献一直受到广泛的关注,但却研究不够.本文借助上海市1431户家庭的微观数据,估计了一个包含教育变量的收入决定函数,然后在基于回归分析的收入差距分解框架内,运用最新发展起来的夏普里值过程(Shapley Value Approach),分解出了教育对于收入差距的贡献大小.通过比较发现,与地区间差距的情形不同,教育对于地区内收入差距而言是最重要的影响因素.     

INCOME INEQUALITY IN THE PHILIPPINES, 1961–91

Household income inequality in the Philippines remains high and the trends for three decades have been fairly stable except for a sharp decline in the mid-1980s. Gini coefficient of income inequality has been consistently close to 0.50. Urbanization and education of household head are the most important factors determining the level of income inequality while the contribution of age of head is limited. The increase in the number of urban households results in an increase of overall inequality while the increase in the number of household heads with a college education tends to decrease the inequality. Among the household income sources, wage income is the largest contributor to total income inequality. Wage rate inequality appears to be a major source of wage income inequality.     

新疆人均收入和收入不平等的增长与收敛——基于空间面板模型

新古典经济增长模型预测,随着时间的推移,人均收入的差距将会缩小,收入不平等将会逐渐趋同。本文利用1995年—2012年新疆15个地州的空间面板数据,采用跨部门模型和空间面板数据模型,并考虑空间交互效应来检验上述预测对新疆的正确性。研究结果显示,在对教育程度、失业、产业构成、人均收入的空间滞后增长以及区域固定效应进行调控之后,人均收入存在条件收敛,而收入不平等则存在无条件收敛。     

Education expansion,assortative marriage,and income inequality in China

In this paper, we study the pattern of assortative marriage in China since 1990 and its impact on income inequality. The results indicate that men in China are increasingly likely to marry women of similar education levels. We calculate the counterfactual income inequality that would prevail if marriages were randomly matched in terms of education. In 2005, China's overall Gini coefficient of household income per capita would decline from 0.512 to 0.476 if marriages were randomly matched. In urban areas, assortative marriage in education increased the Gini coefficients from 0.321 to 0.338 in 2009. The decomposition exercise shows that the rising returns to education contribute most to the increase in income inequality in urban areas between 1990 and 2009, while the change in marriage assortativeness plays a minor role.     

Exploring the Impact of Energy Sources on Production,Inequality and Poverty in Simultaneous Equations Models for South Africa

Abstract: This work adapts per capita income, energy demand (sub‐group decomposed), inequality and poverty frameworks in a simultaneous equations setting to investigate the role of energy sources on per capita income, inequality and poverty in South Africa. It finds that energy sources (particularly electricity and diesel) are important in estimating production functions. Gasoline, kerosene and coal all exacerbate poverty, with the highest impacts on abject poverty. It is better to disaggregate energy sources in order to capture resource‐specific details. Redistribution efforts that focus on reduction of between‐group inequality can also moderate energy use since between‐group inequality tends to increase the demand for most energy sources. Public efforts are yielding fruits in this direction and should be encouraged. Access to energy sources like electricity, diesel and gas are crucial for productivity enhancement, but for them to yield significant anti‐poverty fruits, efforts must also target broadening capital access by the poor.     

Human capital investment in children: An empirical study of household child education expenditure in China, 2007 and 2011

Household education expenditure is an important component of human capital investment in children. In China, the rising child education expenditure and the subsequent financial burden on families have attracted much research and policy attention in the recent years. Using 2007 and 2011 data from the Urban Household Education Surveys, our empirical study provides new evidence on the education expenditure level, ratio of expenditure to household income, and inequality in this expenditure. We also elucidate changes in China's household education expenditure and explore factors associated with such changes. From the analysis, we obtain the following findings. First, education expenditure incurred outside the school significantly contributes to increasing household education expenditure. Second, compulsory education programs are effective in curbing in-school education expenditure; however, it does not prevent the rapidly increasing education investment outside school. Third, education expenditure disproportionally increases with family income. In other words, a larger share of the income earned by lower income families is spent on children's education, compared to higher income families.     

A decade's story of childhood malnutrition inequality in China: Where you live does matter

A concentration index methodology to analyze the inequality in childhood malnutrition in China is outlined. Height-for-age z-score is used as a measure of childhood malnutrition. Using household survey data from nine Chinese provinces, we found that per capita household income, household head's education, urban residence and access to a bus stop are associated with lower malnutrition. Child's age has a nonlinear relationship with the malnutrition status. Income growth and access to public transportation are associated with less severe inequality, while rural–urban gap, provincial differentials, and unequal distribution of household head's education are associated with higher levels of inequality in childhood malnutrition. Gender is not relevant for either malnutrition status or inequality. Investments in infrastructure and welfare programs are recommended to ameliorate the inequality in childhood malnutrition.     

Dynamics of Growth,Poverty and Inequality: A Panel Analysis of Regional Data from Thailand and the Philippines*

Using panel data for provinces compiled from household expenditure microdata, the present paper empirically investigates the relationships among growth, poverty and inequality in Thailand and the Philippines. The empirical model avoids the potential bias due to the fact that the entire distribution of individual‐level consumption changes over time and empirical variables for growth, poverty and inequality are often compiled from the consumption distribution. The system generalized method of moments estimation results strongly suggest that inequality reduced the growth rate of per‐capita consumption, and that differences in inequality explain a substantial portion of the Philippine–Thai difference in growth and poverty reduction since the late 1980s.     

寒门难出贵子?——基于“家庭财富-教育投资-贫富差距”的实证研究

文章首次从教育选择的角度出发,探讨了人力资本投资与收入差距之间的关系,作者首先建立了教育回报的代际交迭模型,推断出富裕家庭教育回报率高这个事实会拉大社会的贫富差距。作者使用1992年至2009年的中国城镇住户调查数据对理论推论进行了论证,实证结果表明出身"寒门"的子女期望教育回报率更低,这拉大了与富裕家庭群体的收入差距,也是"寒门难出贵子"的原因。自2001年来,家庭因素带来的教育回报差异能够解释19.1%的城镇居民收入差距,引入工具变量的结果表明,真实的情况可能更加严重。作者进一步模拟了"新常态"下的贫富差距状况,结果表明,经济潜在增速下降会使得基尼系数扩大6.1%。     

福建农村人力资本水平与农民收入

采用国家统计局福建农村住户调查数据,实证分析了农户家庭人力资本水平与家庭收入之间的关系,结果表明:户主的文化程度越高,农户家庭的总收入越高,家庭收入中来自稳定的收入越多,收入来源越多样化,家庭的生活水平越稳定。随着家庭平均教育水平的提高,农户家庭的收入也不断提高,教育投资的收入弹性呈递增趋势,随着时间的推进,教育对收入的效应逐渐加大。从培训来看,接受培训的农户家庭,其收入明显高于未接受者培训的家庭的人均纯收入,而且随着家庭劳动力接受培训次数的增加,家庭收入也不断增加。     

Economic Convergence in the African Continent: Closing the Gap

The paper attempts to analyse the conditional β‐convergence and its sources for 32 African countries over the period 1960‐2008. The augmented Solow model with both gross domestic product (GDP) per worker and per capita income is estimated using the dynamic system generalized methods of moments (GMM) technique with the panel data. This is the first study on the sources of conditional β‐convergence for African countries. According to the results of the augmented Solow model, income convergence rates are lower than those of GDP per worker. Moreover, total factor productivity convergence, human capital convergence and capital labour convergence are contributing towards the convergence of GDP per worker in Africa. This means that growth in the poorest African countries is being augmented by “catch‐up factor,” which is good news for them. However, convergence in terms of GDP per worker is not being fully translated into income per capita convergence. The demographic structure in the African continent with its record of persistent population growth has played an important role in lowering the income convergence of its countries.     

Decomposing income inequality in a backward pre‐industrial economy: Old Castile (Spain) in the middle of the eighteenth century

Research on economic inequality in early modern Europe is complicated by the lack of appropriate data for reconstructing income or wealth distributions. This article presents a study of income inequality in mid‐eighteenth‐century Old Castile (Spain) using the Ensenada Cadastre, a census conducted between 1749 and 1759. The article describes the information provided by this census and then discusses its advantages and disadvantages for reconstructing income profiles and calculating income inequality. This is followed by analysis of a dataset derived from the Cadastre that consists of more than 4,000 observations from Palencia (a province in northern Spain) and contains information on sources of household income, each household head's main occupation, residence location, and other household characteristics. Demographic data from this census is used to weight observations in the sample and thereby minimize selection bias. Findings show that inequality in eighteenth‐century Spain was probably substantial despite its relative backwardness; that the relationship between inequality and per capita income was not clear‐cut and was probably influenced by measurement of the higher incomes; and that although income inequality was largely driven by uneven land distribution, labour income also contributed to overall inequality—especially in urban centres.     

我国农民收入增长缓慢的根本制约因素与对策

农村居民家庭人均纯收入按收入来源可划分为三个主要部分:家庭经营农业收入、家庭经营二、三产业收入与工资性收入。本文通过对这三部分收入分别进行讨论,认为制约农民收入增长缓慢的根本因素为:农民人均耕地资源有限,农民劳动生产率低;农村市场虽然巨大但是过于分散;农民人力资本投入低。最后,本文提出了增加农民收入的根本对策及一些短期对策。     

Income Distribution across Ethnic Groups in Malaysia: Results from a New Social Accounting Matrix

A new social accounting matrix is constructed for Malaysia for the year 2000 to analyze sources of income inequality among ethnic groups in Malaysia. The analysis reveals that income inequality can be decomposed into the interaction of: (i) hourly wages; (ii) working hours per week; and (iii) number of dependents per household. The results of the analysis suggest that occupational differences are the main factor contributing to wage inequality in Malaysia. Ethnic Malays tend to work in low‐wage industries while ethnic Chinese and Indians are more likely to work in higher‐wage industries.     

Unequal access to education and income distribution

Summary This paper attempts a new specification of the education variable in accounting for differences in income distribution in a cross-sectional analysis of 49 countries. The specification refers to the steepness of the educational pyramid, as measured by the coefficient of variation of enrolments within a given country. This variable alone explains 23 per cent of income inequality across countries (as measured by the Gini coefficient), while in the presence of it the traditional (catch-all) per capita income variable becomes insignificant.This finding indicates the importance of the supply side in relative income determination. It is also suggestive that a policy aiming at equalisation of access to the different levels of education might help in reducing income inequality.I would like to thank Arnold Anderson, Mary Jean Bowman, Jan Tinbergen and Peter Wiles for commenting on an earlier draft of this paper.     

The impact of education on income inequality and intergenerational mobility

This paper analyses the effects of innate ability, compulsory education (grades 1–9), and non-compulsory education (grades 10–12 and higher education) on inequality and intergenerational mobility of income, by constructing a four-period overlapping-generation model. We find that innate ability and family investment in early education play important roles in explaining income inequality and intergenerational income mobility. Though children from the wealthiest families are only 1.36 times ‘smarter’ that those from the poorest, the gap in human capital expands to 2.35 at the end of compulsory education and to 2.89 at the end of non-compulsory education. One important reason for the increase is that poor families invest relatively less in children's early education than do wealthy families; therefore, their children attend lower-quality schools, which results in them being much less likely to participate in higher education. By simulating policy experiments for different types of government education expenditure, we find that direct subsidies to poor parents are the most efficient and effective policy for mitigating poor families' budget constraints with regard to early-education investment in their children.     

Regional Income Inequality and Welfare in China: A Dominance Analysis

Inference-based dominance analysis is applied to micro data containing comprehensive measures of rural and urban incomes in seven major regions of China. Ordinal inequality rankings are estimated for Lorenz curves of household income, per capita household income and square root equivalences scale adjusted income. Regional inequality is shown to be sensitive to the treatment of household size. The lack of reliable regional cost of living measures leads us to propose that entire food expenditure share quantile distributions be used as indicators of differences in well-being within and across regions. The results indicate that statistical rankings of Lorenz dominance and food share dominance are very different indicators of regional disparities in income and welfare in China. One urban region is shown to have been in the unenviable position in 1988 of being at the bottom of the Lorenz dominance ranking and tied for last in terms of food share dominance.     

Human capital estimates in China: New panel data 1985–2010

We introduce new provincial level panel data on human capital in China from 1985 to 2010. Our estimation of human capital is based on the Jorgenson–Fraumeni lifetime income approach modified to fit the Chinese data, thereby allowing a more comprehensive measurement of human capital than traditional partial measurements, such as education. Our provincial data are adjusted for purchasing power parity via a living-cost index as well as for real values so that all values are comparable across the provinces and time. We discuss various characteristics of the data, including total human capital, per capita human capital, and labor force human capital, which in turn are disaggregated based on gender and urban or rural location. Our human capital estimates are compared with the provincial physical capital estimates and provincial GDP. As an illustration, we also use the data to estimate a production function and to decompose China's economic growth from physical capital, human capital, and TFP. Our results, compared with those that use traditional specifications, reassure us as to the reliability of our new China human capital data.     

SOURCES OF INCOME DIFFERENCES ACROSS CHINESE PROVINCES DURING THE REFORM PERIOD: A DEVELOPMENT ACCOUNTING EXERCISE

The present paper performs a development accounting analysis to investigate the sources of China's interprovincial income inequality over the period 1982–2005. We estimate a Cobb–Douglas aggregate production function with various specifications. Using the estimated parameters, we conduct a development accounting analysis as well as a variance decomposition. Our results suggest that differences in physical capital intensity and in total factor productivity are both important sources of cross‐province income differences, each accounting for roughly half of the variation in income levels. Differences in human capital explain only a small amount of income differences across provinces. The results are robust to whether or not the assumption of constant returns to scale is imposed. The interaction between factor accumulation and total factor productivity is also discussed.     

Religiosity and household income in Sekhukhune

Literature analysing the interrelation of religion and economic performance suggests religion to explain differences in household income. Religious communities foster economically conducive attitudes and are important sources of social capital, particularly under weak economic structures. This paper targets at investigating effects of religiosity on rural household income using survey data from Greater Sekhukhune in the Limpopo Province of South Africa. Using insights from religious studies within a conceptual framework of rural household decision-making, the authors estimate an income equation that includes measures for religious affiliation. While church membership per se does not reveal a significant effect on household income, the results show a positive and robust relationship for membership in the Zion Christian Church and the practice of African traditional religion.