Inequality in China revisited. The effect of functional distribution of income on urban top incomes,the urban-rural gap and the Gini index, 1978–2015

Most analyses explain the increase in China's overall inequality during the reform period principally by means of the expansion of urban-rural income gap. This paper tries to state a relationship between functional distribution of income and China's Gini index. After presenting the main theoretical contributions that clarify the general relationship among those variables, we describe the mechanism that has connected them during the last decades in the Chinese economy. There exists a link between falling wage share, rising urban households' top incomes, urban-rural income gap and the Gini coefficient. These relationships are analysed for both the pre and post-crisis periods. After estimating the main relationships, the paper ends with a discussion on the ability of potential redistributive policies to reverse this pattern of inequality.     

收入不平等对居民幸福感的影响研究

本文基于 2012-2021年共6期的中国综合社会调査(CGSS)数据,利用事前非参数法分解得到努力不平等和机会不平等,从结构分解的研究视角揭示了收人不平等对居民幸福感的内在机理。研究发现,努力不平等对居民幸福感存在正向作用。机会不平等产生负向影响,这一研究结论经相关稳健性检验后仍稳健可靠。本研究利用分组回归和双边随机前沿模型探析了这一影响效应在不同收人水平、不同区域以及不同年份的异质性特点。进一步地,本文构建起中介效应检验模型,机制检验结果表明在机会不平等影响居民幸福感的作用路径中,社会平感发挥着不容忽视的部分中介效应。本文研究结论为提高我国居民幸福感水平、寻求“伊斯特林悖论”的破解之道提供了政策启示与建议。     

The role of bamboo plantations in rural development: The case of Anji County,Zhejiang, China

Bamboos have often been viewed as inferior products, labeled as the “poor man's timber.” Development groups have proposed bamboo production as an opportunity for increasing the wealth of the lower-income groups. This paper is a study of the household economy of 200 bamboo farmers in eight townships of Anji County in China. The authors describe the process of transformation of rural China from communes to the household responsibility system, the differentiated rate of development among farmers and the role of bamboo in that change. A multiple regression analysis was carried out to study the factors that influence farmers' incomes and their evolution. A warning is sounded against using bamboo production to target low-income groups, as well as relying solely on aggregated data when drawing conclusions on income disparities in China.     

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.     

Inequality of opportunity in China: Evidence from pseudo panel data

We construct a pseudo panel sample from the China General Social Survey to study the inequality of opportunity in China. The pseudo panel enables us to control for cohort-specific heterogeneities when estimating the Mincer equation, and the results show that individual circumstances play a prominent role in determining income advantage. Counterfactual analysis further reveals the importance of cohort-level circumstances: individual circumstances account for less than 10% of the observed income inequality, whereas equalizing both the individual circumstances and the cohort fixed effects reduces income inequality by 30%. Among the individual circumstances we examine, gender and paternal characteristics contribute more to income inequality than does hukou of birth. Subsample analysis shows that China's western provinces exhibit the highest inequality of opportunity and that the inequality of opportunity among younger cohorts is smaller than that among older cohorts.     

Inequality of opportunity in household income,China 2002–2018

This study contributes to the literature on inequality of opportunity (IOp) in China by covering a longer and more recent span of time, employing better measures of given characteristics, and analyzing IOp for household income per capita with comparisons to individual income. Furthermore, it analyzes how IOp differs between the rural- and urban-born, and how IOp changes across birth cohorts and with age. We use 2002, 2013 and 2018 data from the Chinese Household Income Study and focus on income inequality among working-age persons. We find that IOp in China declined, especially between 2013 and 2018. In 2002 the large contributors to IOp were region, hukou type at birth, and parents' characteristics. In 2018 the contributions of region, hukou type at birth and parents' occupation had decreased, but that of parents' education had increased. We find that IOp is larger among those born in rural than urban China. Furthermore, IOP's contribution to total inequality within each birth cohort is highest earlier in individuals' work lives and declines with age. IOp is higher for older than younger birth cohorts, reflecting that younger cohorts have benefited from increased opportunities associated with China's reforms and opening up.     

Sibling Rivalry and Strategic Parental Transfers

This paper develops a noncooperative Nash model in which two siblings compete for their parents' financial transfers. Treating sibling rivalry as a “rent-seeking contest” and using a Tullock-Skaperdas contest success function, we derive the conditions under which more financial resources are transferred to the sibling with lower earnings. We find that parental transfers are compensatory and that the family as an institution serves as an “income equalizer.” Within a sequential game framework, we characterize the endogeneity of parental transfers and link it to parents' income, altruism, and children's supply of merit goods (e.g., parent-child companionship or child services). We show that merit goods are subject to a “moral hazard” problem from the parents' perspective.     

China's Surplus Agricultural Labour Force: It's Size,Transfer, Prospects for Absorption and Effects of the Double-Track Economic System*

The commune economy had two basic characteristics: one was its three-grade pyramid-type structure of organisation which integrated government administration and economic management; and the other was its “self-sufficient” and “closed-door” character. Under this system farmers had no free choice about their occupation and place of residence. With the collapse of the commune system, institutional reorganisation of China's rural economy occurred. Farmers had more choice now about their production, their occupation and place of residence based on the development of a modern commodity and market economy. In this process of institutional reorganisation, transfer of surplus agricultural labour is a key factor. The concept of the agricultural labour surplus is discussed and discussions in English of this concept and associated theory and policy are reviewed. With reform of rural economy and improvement of agricultural labour productivity, the quantity of surplus labour in rural China has increased. Greater labour absorption is required in both agricultural and non-agricultural sectors, but particularly in non-agricultural sectors. In China, several impediments to transfer of surplus agricultural labour still exist. The transfer of surplus agricultural labour in contemporary China occurs in the context of a nationwide “double-track” economic system (a market-oriented economic system harnessed to a centrally planned and controlled economic system) and a “dual economy” in which modern industries exist alongside a traditional indigenous agricultural economy. Income gains provide the main motivation for farmers to transfer to non-agricultural activities. It is the income difference between farming and non-farming activity, not whether the marginal labour productivity in farming is zero that is important. By building and developing free or open markets one provides a suitable climate for labour transfer and migration. In the absence of free or open markets, farmers have little free choice. The continuing system of household registration is a serious institutional barrier to transfer or migration by farmers. Furthermore, the system of equal farmland contracts also hinders the process of transfer or migration. This might be overcome by allowing the transfer of rights to use farmland and facilitating “part-time” transfer of agricultural labour. Withdrawal of “surplus labour” from farming can cause grain output to drop. This can occur because if “better” farmers leave agriculture, the quality of farm labourers as a whole declines and because of a rigid price system which discriminates against agricultural products. While current transfers of surplus agricultural labour in China may well have increased income inequality between rural residents and between regions, if there had been greater freedom of migration this might have resulted in less income inequality. To the extent that market reform in China has resulted in greater freedom of economic choice, it appears to have increased the level of production obtained from China's limited resources. This is not to say that the market system will result in a perfect solution even though the economic results can be expected to be much superior to the commune system adopted in the past by China.     

China's multilateral approach to world order: Implications for regional cooperation*

Answer to inducing China's active and full participation in regional cooperation scheme in Northeast Asia has been long sought by many. In the course, what they have overlooked is China's willingness to participate in such scheme when the conditions of world order are met: a world order built upon Five Principles of Peaceful Co‐existence, not dominated by one single individual power, and by which national sovereignty is fully guaranteed. Otherwise, China claims, prerequisites for cooperation, confidence and trust, would never be built among the concerned parties. In recent times, China has taken the initiatives to achieve this end, as reflected in its “summit diplomacy”. Thus far, the consequence of such an effort has been regarded very positive. Based on this observation, the paper explores the correlation between the consequence of China's omni‐directional diplomacy and subsequent changes in its attitude toward cooperation at regional level. It finds that there is a strong correlation between the two variables as proven in ASEAN and ARF.     

Preferential policies and income inequality: Evidence from Special Economic Zones and Open Cities in China

This paper examines whether cities with preferential policies have higher inequality in household disposable income per capita than cities without preferential policies in urban China. “Preferential policies” refers to the autonomy and deregulation given to Special Economic Zones (SEZs) and Open Cities, allowing them to experiment with market policies and reforms, as the country moves from a state-controlled economy towards a market-oriented economy. While the effect of these policies on economic growth is extensively documented, their relationship with income inequality remains undetermined. Subgroup decompositions of income inequality, using the China Household Income Project's urban datasets of over 6000 households and 20,000 individuals from of up to 70 cities from 12 provinces, were used to identify income inequality gaps between cities with and without preferential policies. The results reveal that while income inequality increased in urban China from 1988 to 2007, the change was lower for cities awarded preferential policies across regions. Furthermore, the decompositions by region indicate that cities receiving preferential policy treatment had higher income growth but a lesser increase in income inequality than cities without preferential policies in each region. Finally, cities receiving preferential policies were able to increase the share of income of the poorest 40% of households while reducing the share of the richest 10%.     

Inequality and the Urban-rural Divide in China： Effects of Regressive Taxation

Using three comparable national representative household surveys for China in 1988, 1995 and 2002, the present paper reveals the regressivity and urban bias of China＇s direct tax and welfare system in this period It shows that a regressive taxation system and skewed allocation of subsidies increases the urban-rural income gap and enhances overall inequality. Modeling these relationships indicates that the relatively poorer rural population has a net tax liability, whereas those in the richer urban areas receive net subsidies. This pattern is common in China, although the extent of the bias varies. This skewed system of tax and welfare payments is a major cause of the persisting urban-rural income gap and contributes to the overall income inequality in China. The abolishment of the agriculture tax in 2006 has had a positive impact on rural people ＇s livelihoods.     

The sophistication of exports: Is China special?

Recent studies have found that China is “special” in exporting highly sophisticated goods not comparable with its income level. In this paper we identify two measurement biases that account for this “China is special” observation. First, product quality has not been fully considered in the measurement of sophistication, which has caused an overestimation of the sophistication of China's exports. Second, the average income of China has been used to measure the export capability of China, which has caused an underestimation of China's capability of exporting sophisticated goods. After correcting the two measurement biases, China appears much less as an outlier in the cross-country comparison of the sophistication of exports.     

Inequality of Opportunity in China's Labor Earnings: The Gender Dimension

This paper investigates the inequality of opportunity in China's labor earnings, defined as the component of inequality determined by personal circumstances that lie beyond the control of an individual, of which gender is one, as opposed to the component determined by personal efforts. Using the Survey of Women's Social Status in China (2010), we measure the share of inequality of opportunity in the total inequality of individual labor earnings for people aged 26–55 years, and separately for six birth cohorts and for female and male subsamples. Gender is revealed as the single most important circumstance determining nationwide individual labor earnings, with one's region of residence, father's occupation, father's education, birth cohort and holding rural or urban hukou also playing significant roles. A further investigation into the roles of circumstances and personal efforts (including education level, occupation, Communist Party membership, migration and marital status) confirms that circumstances play an alarmingly high role in shaping labor earnings distribution in China, and reveals notable gender differences that cannot be attributed to personal effort alone. These results provide the basis for recommending ways to improve gender equality of opportunity in the future.     

Easterlin revisited: Relative income and the baby boom

This paper reexamines the first viable and a still leading explanation for mid-twentieth century baby booms: Richard Easterlin's relative income hypothesis. He suggested that when incomes are higher than material aspirations (formed in childhood), birth rates would rise. This paper uses microeconomic data to formulate a measure of an individual's relative income. The use of microeconomic data allows the researcher to control for both state fixed effects and cohort fixed effects, both have been absent in previous examinations of Easterlin's hypothesis. The results of the empirical analysis are consistent with Easterlin's assertion that relative income influenced fertility decisions, although the effect operates only through childhood income. When the estimated effects are contextualized, they explain 12% of the U.S. baby boom.     

Trade in factor income and the US-China trade balance

US multindoational enterprises sell considerable amounts of products to China's domestic consumers that are “made” in either China or other countries. However, these sales are not counted as US exports to China. To account for this, we propose a beyond-borders approach to measuring trade flows that explicitly considers firm ownership, termed “trade in factor income (TiFI),” that defines the US-owned factor income induced by China's final demand as US exports to China. Applying this approach to OECD data, we find that on average from 2005 to 2016 in TiFI terms, US exports to China were 20.34% and 8.21% greater, China's exports to the US were 1.64% and 16.04% less, and the US trade deficits with China were 17.4% and 32.0% less than the trade figures reported in value added and gross terms, respectively. The concept of TiFI transforms trade measures from a territory-based “made in” label to a factor income-based “created by” label.     

Intergenerational income mobility and economic freedom

Numerous studies have found that income inequality reduces the chances of upward relative mobility (i.e., climbing up the income ladder). However, most of this work ignores the role played by institutional quality (namely, economic freedom) in determining mobility and increasing the individual's set of choices. We fill this gap by empirically testing the direct and indirect (through economic growth) impacts of economic freedom on intergenerational income mobility. We find that economic freedom has both direct and indirect effects on intergenerational income mobility, while income inequality is a strong predictor of downward income mobility. When we incorporate findings about the purely mechanical relationship between inequality and intergeneration income mobility, we find that the legal system and property rights component of economic freedom matters more than inequality. These results suggest that good institutions can increase intergenerational income mobility.     

Income distribution in the mirror of height differences: The case of Spain 1895–1950

Changes in the differences of heights among social groups could indicate shifts in income inequality. However, they can result from other factors as well. This article discusses which factors are these and, hence, which variables should we control for before taking height differences as a proxy for income inequality. An application to Spain from late nineteenth to mid-twentieth century seems to sustain the authors' contentions, and provide some conclusions for this country and time period. Given the scarcity of data on family incomes, this method could prove valuable for the study of the long-run evolution of income distribution in other countries.     

Incentives versus equality: What does China's recent experience show?

Since 1978, China's economic policies have stressed differential rewards for higher productivity, particularly through the contract system in rural areas. This has permitted and encouraged some families to achieve relatively high incomes. However, there was considerable inequality in China before 1978, particularly the persistent and wide disparity between urban and rural incomes. The economic reform has had some tendency to increase slightly the share of income received by the very top group and to reduce slightly the share of the bottom one-third. However, the principal effects have been to raise total income for most residents and to reduce substantially the urban-rural gap.     

Global value chains,firms, and wage inequality: Evidence from China

How does participating or moving to more upstream in the global value chains (GVCs) affect the premium paid to skilled compared to unskilled labor within firms? In this paper, we develop a model of heterogeneous firms with intermediate trade and two skill inputs, in which we apply the fair wage hypothesis to predict the wage premium changes according to firms' GVCs activities. The model predicts that firms' backward GVC participation, as measured by the share of foreign value-added content in exports (FVAR), has an ambiguous impact on wage inequality of skills, which depends on the relative importance of “FVAR-labor substitution effect” and “FVAR-profit effect.” However, moving to upstream sectors in GVCs, as measured by the export varieties' upstreamness (or average distance from final use), raises a firm's wage premium. Using detailed Chinese firm-level data from 2000 to 2006, we develop a Mincer-type empirical model to study the wage premium changes associated with FVAR and upstreamness. We find robust empirical evidence that the rise of wage inequality in China mainly arises from moving to more upstream sectors rather than changing GVC participation.     

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.