Decomposition of the increase in earnings inequality in urban China: A distributional approach

This study examines changes in Chinese urban income distribution from 1987 to 1996 and 1996 to 2004 using nationwide household data and investigates the causes of these changes. The Firpo, Fortin, and Lemieux (2007, 2009) method based on unconditional quantile regressions is used to decompose changes in income distribution and income inequality measures, such as variance and a 10:90 ratio. The decomposition results show that wage structure effects, such as a widening gender earnings gap, increases in returns to college education, and increases in earnings differentials between industries, company ownership types, and regions, have been the major contributors to the overall increases in income inequality. It was also found that at different points on the income distribution (e.g., the lower or upper half), the contributing factors that increase income inequality are different.     

Has China run out of surplus labour?

Many recent studies claim that China has reached a Lewisian ‘turning point’ in economic development, signalled by rising wages in urban areas and the exhaustion of rural surplus labour. In this paper we show that despite some evidence of rising nominal urban unskilled wages between 2000 and 2009, there is little in the data to suggest that this wage increase has been caused by unskilled labour shortages. China still has abundant under-employed workers with very low income in the rural sector. We argue that China's unique institutional and policy-induced barriers to migration have both prevented many rural workers from migrating to cities and also reduced the migrants' length of stay. We project that under alternative institutional settings, the migrant stock could easily be doubled from the current 150 million to 300 million by increasing either the average length of migrant stay, or the migrant inflow, or both.     

Land fragmentation and farm productivity in China in the 1990s

The main objective of this study is to examine the effects of fragmentation on farm productivity in China and to discuss policy implications. Some earlier work has questioned the importance of the economic costs of land fragmentation in developing economies. It has been argued that policymakers should focus instead on reducing the root causes of fragmentation: inefficiencies in land, labour, credit, and food markets. Our results, using a more recent and larger dataset from a household survey in China, find that fragmentation does have an economic cost in China. Production functions are estimated for each of the major grain crops in the sample provinces. We also argue that to reduce the economic costs, land consolidation in China should be undertaken with less government intervention. More attention should be given to the establishment of markets for land (or land use rights) and improvements in rural credit and grain markets.     

Income inequality in central Spain, 1690–1800

This paper studies the evolution of income inequality in central Spain during the late seventeenth and eighteenth centuries, taking as case study the province of Guadalajara. The first part of the paper presents the sources and the dataset that was created to estimate income inequality using grain tithes. The second section shows that through the period grain represented the lion share of total income and therefore that it can be used as a reliable proxy. The following part of the paper introduces an analysis of income inequality in the province during the period 1690–1800 and concludes that inequality decreased during the last third of the eighteenth century. Finally the paper addresses this unexpected result and concludes that it was consequence of the success of the land reform carried out by the central government in the late 1760s. The reform was a success in Guadalajara, thanks to the characteristics of its population and the lack of bargaining power of pressure groups.     

Land use change and environmental stress of wheat, rice and corn production in China

Grain self-sufficiency is one of the most important agricultural policy goals in China. With only modest imports, China has succeeded in feeding 22% of the world's population on only 7% of its land. However, a high price has been paid for this enormous achievement. Increase in grain yields, in particular in rice, as the main source of production growth, relied heavily on intensive use of physical inputs and increasing intensity of farming systems. Soil degradation, water scarcity, and severe pollution were among the consequences as well as declining efficiency of fertilizer application. Using county-level panel data from 1980 to 2003 and graphical (GIS-based) analysis, this paper first looks at the spatial change of the major grain production across regions over the past two decades, towards the northern and northeastern provinces. The analysis is complemented by using a random panel data model, which underscores the significant influence of land availability, degree of urbanization, and government policy on grain production. Finally, this analysis addresses environmental stress which includes both soil degradation and water shortage. The latter is already severe in many of the traditional grain producing areas, but will now become a bigger problem in the “new” grain producing areas, as these have traditionally much less water resources. Hence, while the economic rational of the “grain shift” towards the northern and northeastern regions is understandable, its sustainability is not guaranteed.     

Rural-urban Migration and Dynamics of Income Distribution in China： A Non-parametric Approach

Extending the income dynamics approach in Quah (2003), the present paper studies the enlarging income inequality in China over the past three decades from the viewpoint of rural–urban migration and economic transition. We establish non‐parametric estimations of rural and urban income distribution functions in China, and aggregate a population‐weighted, nationwide income distribution function taking into account rural–urban differences in technological progress and price indexes. We calculate 12 inequality indexes through non‐parametric estimation to overcome the biases in existing parametric estimation and, therefore, provide more accurate measurement of income inequality. Policy implications have been drawn based on our research.     

The impact of agricultural technology adoption on income inequality in rural China: Evidence from southern Yunnan Province

This study analyzes the impact on income inequality of government efforts to increase agricultural incomes in rural China. It collects and analyzes survey data from 473 households in Yunnan, China in 2004. In particular, it investigates the effects of government efforts to promote improved upland rice technologies. Our analysis shows that farmers who adopted these technologies had incomes approximately 15% higher than non-adopters. Despite this relatively large increase, we estimate that the impact on income inequality was relatively slight. This is primarily due to the fact that lower-income farmers adopted the improved rice technology at rates that were roughly equivalent to those of higher-income farmers.     

中国农村收入不平等—基于微观调查数据的回归分解

论文利用2003-2008年CGSS的微观个体调查数据,运用回归分解方法对中国农村收入不平等进行分解。首先对收入不平等进行测算,研究发现农村收入极端不平等,并且呈上升趋势。回归分解结果表明,年龄、教育、性别、东部地区虚拟变量、政治地位、婚姻、健康和幸福感是对农村收入不平等的决定要素。其中教育、年龄、性别、东部地区虚拟变量和健康对农村收入不平等的贡献显著。其余变量对农村收入不平等的贡献相对较小,但其对农村收入不平等的影响也不能被忽视。研究结论对政府制定科学合理的收入分配政策和有效调控收入差距具有借鉴作用。     

Migration,population aging,and income inequality in China

In this study, we examine the effects of four demographic factors, namely, birth, death, natural aging, and net migration, on population aging and income inequality in China. We use the official Chinese data and the China Household Income Project Survey data for the 2007–2013 period and apply a decomposition model based on the Shapley method. Unlike previous studies, we include migration in our decomposition model and find that natural aging is the primary factor contributing to population aging in both urban and rural areas. Further, migration may accelerate population aging in rural areas. Moreover, migration contributes to reducing income inequality in urban areas, while widening income inequality in rural areas. The effect of migration is larger than those of birth, death, and natural aging on income inequality. The robustness checks confirm these conclusions.     

退耕还林政策效果分析——基于内蒙古赤峰市的调查

文章以内蒙古赤峰市为例，以来自部分农户的调查数据和统计年鉴等资料为基础，采用实证分析方法，对该地区退耕还林政策效果进行分析。结果表明，该政策对改善生态环境、调整农业产业结构、提高粮食单产、增加农民收入等产生了积极影响，但也存在林权纠纷、配套政策不完善、剩余劳动力增加、后续产业发展滞后等一些问题。据此，文章最后相应提出一些完善该政策的建议。     

China＇s New Rural Income Support Policy： Impacts on Grain Production and Rural Income Inequality

I. Introduction Since the beginning of 2004, the Chinese Government has replaced its centuries-old policy of taxing agriculture by a new policy aimed at subsidizing agriculture and stimulating rural incomes. To this end, agricultural taxes – standing at around 8 percent of agricultural incomes – were drastically reduced. By now they are abolished in most provinces. Inaddition, farmers growing grain receive a direct income subsidy, new seed varieties and mechanization are subsidized, and la…     

创新与收入不平等

文章运用1995-2014年中国省际面板数据,从部门内和部门间两个视角,考察总体创新和产业创新水平对收入不平等的影响。实证结果表明不同类型的创新活动对收入不平等产生了不同影响：对于城镇居民收入不平等,总体创新水平和高新技术创新水平具有显著的扩大作用,创新带来了不同收入阶层内部的分化;对于农村居民收入不平等,农业创新水平具有显著的缩小作用,显示出农业创新对农民增收的积极作用;对于城乡收入差距,总体创新水平和农业创新水平具有缩小作用,而高新技术产业创新水平具有显著扩大作用。不仅如此,由于城乡收入差距存在显著的正向空间自相关,总体创新和高新技术产业创新对相邻地区城乡收入差距有显著的扩大作用。     

初次分配对城乡收入差距影响的实证分析

本文运用经济计量方法,利用2000~2009年间的数据,对城乡人均初次分配收入差距与城乡人均收入差距之间的关系进行实证分析,建立了相应的回归模型,并进行了Granger因果关系检验。研究结果表明:城乡初次分配收入差距与城乡收入差距之间存在密切的关系,城乡初次分配收入差距对城乡收入差距具有推进的作用,意味着初次分配收入差距的扩大必然会促进城乡收入差距的进一步扩大。在对初次分配收入要素进行分析的基础上,本文给出了相应的政策建议。     

Introduction to income inequalities and redistribution in china

This special section presents the main findings about long-run trends in inequality in China and its driving factors as they emerge from a country case study carried out under a UNU-WIDER supported project.¹ Special focus in the umbrella project were on three issues: (i) the role of earnings inequality and its determinants; (ii) the role of top incomes when administrative records or other sources can be combined with household surveys; and (iii) the redistributive impact of public policies. Main findings of the project including those for China results were presented in a special panel during the UNU-WIDER Think Development – Think WIDER development conference held in Helsinki in September 2018.²

1. Motivation

Inequality has once again emerged as a major issue in economic development across the developed and developing world, and addressing this challenge is key in the UN Sustainable Development Agenda. The UNU-WIDER conference on Mapping the Future of Development Economics held in Helsinki in September 2016³ led to the formulation of a project to study inequality in five major developing countries accounting for more than 40 per cent of the world’s population. UNU-WIDER implemented these studies under its Inequality in the Giants project,⁴ designed as part of a broader international effort to shed light on a set of new questions on between-country and within-country inequalities, by generating integrated datasets and applying a consistent methodology to investigate the determinants of inequality dynamics in some of the world’s largest economies. China was included among the five case countries, and the effort included both a series of papers on China, produced under the coordination of Professor Shi Li and various workshops and meetings. Coming to grips with inequality in China is an obvious priority for anyone interested in trends in global inequality; and the present special section contains five key papers produced in the context of the UNU-WIDER project and subsequently accepted for publication by the China Economic Review.

2. Content of the special section

The five papers on inequality in China presented in this special section cover different topics and jointly illustrate a key set of important themes in the recent evolution of China’s income distribution.The opening study by Luo, Li, and Sicular (LLS) provides an overview and analysis of the long-term evolution of inequality in China, while the next three papers — on urban wage inequality, public transfers, and top incomes — each illustrates and delves more deeply into important aspects of the broader trends in inequality.What are the main findings of these papers? The core finding is that inequality in China rose markedly from the 1980s through the early 2000s; only since 2008 has the upward trend stopped or reversed. LLS report and examine the underpinnings of this core finding, using the five waves of the China Household Income Project surveys conducted during 1988-2013. This paper also finds a considerable, ongoing reduction in rural poverty, and a poverty decomposition analysis indicates that this poverty reduction was mostly due to income growth rather than redistribution in rural areas.The second paper by Gustafsson and Wan (GW) is on urban wage inequality from 1988 to 2013 and it sheds further light on the changes in the distribution of wage earnings. The authors highlight that average wages have grown rapidly and that wage inequality increased until 2007. Moreover, age has become weaker and education stronger related with wage. Importantly, the gender wage gap once small widened rapidly between 1995 and 2007, and workers in foreign owned firm and the state sector enjoy a wage premium.While wages are the most important component of income, it is only part of the inequality story. One important additional question is the role of government taxes and transfers. Since the early 2000s, China has embarked on a major effort to put in place a universal social safety net. The study by Cai and Yue (CY), which is the third paper, assess the consequences of these efforts. Their key conclusions include that the same public policy may produce different redistributive implications. Moreover, if the government keeps increasing the social security transfer scale without changing its distribution, then inequality will increase in China. In addition, formal-sector pension takes up the biggest share and is the most un-equalizing sub-item of all social security transfers; and related to the first paper in the special section they argue that the government should spend more on Dibao and rural residents pension to reduce inequality.Arguably, income inequality measured using household survey data understates actual inequality because surveys have difficulty in capturing top incomes. In the Chinese case, concerns about such bias have increased in the past ten years due to the expansion of private wealth and growing numbers of super-rich. The fourth paper by Li, Li, and Wan (LLW) is on top incomes in China and it attempts to correct for this bias using income information for the Chinese super-rich from various sources. They conclude that the Gini coefficient of income inequality increases substantially when samples of top incomes are incorporated.Finally, Gradín and Wu (GW) analyse in the fifth and final study the distribution of income and expenditure in China in a telling comparative perspective with India. Both countries represent two extreme cases in the relationship of inequality using both wellbeing indicators. It emerges that the joint distribution of income and expenditure differs between China and India because there is a higher prevalence of people with a large mismatch between their ranks in income and consumption in India, especially in rural areas, and particularly amongst those reporting low income and high expenditure. The main compositional effects identified are the different demographic and geographical composition of the countries’ populations, mostly the smaller households (especially in rural areas) and the higher level of urbanization in China than in India. The lack of consistency of cross-country comparisons based on income or expenditure calls for the use of hybrid inequality measures combining data on both provided they are available in the same survey.

3. Concluding remarks

The studies brought together in this special section provide telling insights about the trends in inequality in China from which scholars and policy makers can learn a great deal. In a global perspective, further increases in China’s mean income and wealth, both now above the global means, will begin to raise global between-country inequality. This is important in and of itself. Moreover, while we cannot expect that all the world’s poorest countries will follow the same path as China considering that the initial conditions and the international context they face will be very different, the experiences from China do reinforce the observation that much can be done by policy to influence inequality outcomes. In particular, and as argued by Gradin, Leibbrandt, & Tarp, 2020 (forthcoming):“well-functioning labour markets that promote job-creation, decent pay and social inclusion, removing any legal or de facto discrimination based on gender, race, ethnicity or place of origin, providing equal access to human and physical capital, and empowering the most disadvantaged population groups, are a key driver of increased equality”.These insights also emerge clearly from the five China studies in this special section.     

Will China's WTO accession worsen farm household incomes?

Many fear China's accession to the World Trade Organization (WTO) will impoverish its farmers via greater import competition in its agricultural markets. We explore that possibility bearing in mind that, even if producer prices of some (land-intensive) farm products fall, prices of other (labor-intensive) farm and nonfarm products could rise. New estimates, from the global, economy-wide numerical simulation model known as Global Trade Analysis Project (GTAP), of the likely changes in agricultural and other product prices as a result of WTO accession, are drawn on to examine empirically the real income implications of China's WTO accession. The results suggest farm–nonfarm income inequality may well rise within China but rural–urban income inequality need not. The article concludes with some policy suggestions for alleviating any pockets of farm household poverty that may emerge as a result of WTO accession.     

Do Chinese farmers reinvest in grain production?

Grain production is affected by the relocation of farm household labour from on-farm to off-farm activities and by an increase in the investment in grain production as a result of increase in farm household income that occurs along with such a labour shift. This study uses a recent farm household survey data to examine whether Chinese grain households do reinvest in grain production. It has found that household income growth contributes to higher investment in grain production although a higher share of non-agricultural income has a negative effect. The authors' other research has found a negligible direct impact of farm to non-farm labour transfer on grain production. We may conclude that in the near future, the total impact (direct and indirect) of labour transfer from farm to non-farm production on grain output is expected to be positive. In the long run, in may become negative when more and more labour shifts out of grain production and marginal product of labour becomes positive.     

The role of public pensions in income inequality among elderly households in China 1988–2013

Using data from the Chinese Household Income Project surveys for 1988, 1995, 2002 and 2013, we investigate the role of public pensions in income inequality among households with elderly members across two decades of pension policy reforms. We examine the distribution and role of public pensions at a national level and analyse the evolution of the contribution of public pensions to national income inequality across a much more extended time period than earlier studies, which have generally focused on regional changes over short periods. Our findings suggest that public pensions have become the most important source of income for households with elderly members on average in China, but the distribution of pension income is highly unequal, with a Gini coefficient of 0.74 in 2013. Public pension income has been the largest source of income inequality for elderly households since 2002 and contributed to more than half of total income inequality in the most recent year of the survey. This finding is robust against variations in the income inequality measures used. Additionally, our analysis suggests unequal distribution of pension benefits is the primary driver of pensioners' income inequality. Among several hypothetical policy changes, ensuring a minimum pension benefit for all existing pensioners seems to be the most fiscally effective option in reducing income inequality, with a 0.8% reduction in the Gini coefficient for a 1% increase in public pension expenditure.     

Two Decades of Declining Poverty but Rising Inequality in Laos

Over the past two decades consumption inequality has risen within Laos, while absolute poverty incidence has halved. The estimated Gini coefficient of private household expenditures per person rose from 0.311 to 0.364. This increase in the sample‐based estimate of inequality was statistically significant and occurred in all regions, in both rural and urban areas and among all major ethnic, educational and sectoral employment categories. Within‐group increases in inequality dominated between‐group changes. Official policy largely overlooks this point, focusing on reducing inequality between rather than within major groups. Economic inequality seems certain to become a more pressing policy concern.     

中印城乡不平等比较:经济学分析视角

从总体上看,目前中印两国农村内部不平等程度基本上差不多,但是两国收入分配不平等的历史变化和趋势不一样;中国城乡之间无论是收入差距,还是消费差距所反映的不平等程度都明显高于印度的不平等;中国是农村不平等大于城市不平等程度,而印度则是城市不平等大于农村不平等。导致这些结构性差异的原因主要是:印度的经济增长包括技术变化、对外开放、人力资本等因素对于城乡内部以及城乡之间、地区之间等收入不平等变化产生的影响和作用更大;而中国经济增长和对外开放等因素虽然对于收入不平等也有一定影响,但是政府的政策导向和理念(先富后富政策理念与城市和沿海偏向政策)则对于城乡内部以及同一地区内城乡之间的不平等的影响更大一些。     

Economic structural changes and rural income: Evidence from Chinese provinces during the reform period

During the reform period, the Chinese rural economy has experienced deep structural changes: cropping adjustment, agro-forestry adjustment and agro-industrial adjustment. At the same time, rural per capita income rose sharply despite some fluctuations. Using a panel data of 29 provinces from 1982 to 2001, effects of these structural changes upon both income level and income instability are assessed. The empirical results show that crop adjustment and agro-industrial adjustment can increase rural income and reduce income instability, while agro-forestry adjustment reduces both income and its instability, as a risk-management strategy.