Income versus Consumption Inequality in Korea: Evaluating Stochastic Dominance Rankings by Various Household Attributes

Using four rounds (1999, 2002, 2005 and 2008) of the Korean Labor and Income Panel Study, the present paper examines determinants of household income and consumption levels and inequalities. Unconditional as well as conditional stochastic dominance tests are performed by year, by household heads’ characteristics (age, education, gender, health, marital status and occupation) and by household characteristics (household type, household size and degree of urbanization). Mean least squares regression techniques are used to predict conditional expectations. The residuals containing effects for each characteristic conditional on the remaining characteristics are then used for the stochastic dominance analysis employing extended Kolmogorov–Smirnov tests of first‐order and second‐order dominance in distribution of income and consumption. The results provide a detailed and up‐to‐date picture of inequality and poverty by subgroup in Korea, which helps in targeting particularly vulnerable groups. While inequality in disposable income is found to be substantial, consumption inequality is less substantial. Households headed by the elderly, the uneducated, the divorced, the widowed, females, and those with health problems are found to be the most vulnerable groups.     

Introduction to Special Issue on: ‘Inequalities in the Least Developed Countries – Some Lessons from Africa’

This special issue comprises six papers analysing different dimensions of inequalities in African countries. Three papers deal with the trend in inequality in consumption in Mozambique, with multidimensional poverty in four sub‐Saharan countries, and with the relationship between living conditions and subjective well‐being in African countries. The other three are focused on gender issues and are focused on Mozambique, dealing with gender inequalities in the access to contract farming arrangements as well as to employment out of subsistence agriculture, or with the effect of women’s empowerment on children’s health. This introduction provides a short overview of how they contribute to a better understanding of inequalities in low‐income countries.     

Robust Estimates of Changes in Poverty and Inequality in Post‐Independence Namibia

We estimate changes in the distribution of household consumption expenditure in Namibia since independence in 1990 and the effects on poverty. To produce comparability between two household surveys, we use survey‐matching techniques, and we apply the framework of stochastic dominance to test the robustness of our results. The results reveal a significant decrease in the poverty headcount over the period and small but insignificant decreases in the country's extremely high levels of inequality. Decomposition analysis shows that poverty reduction in Namibia is largely driven by growth in mean incomes rather than redistribution. Even so, there have been important changes in inequality among different social groups especially as educational attainment has replaced ethnicity as the main determinant of between‐group inequality.     

Intrahousehold and Interhousehold Child Nutrition Inequality in Malawi

This paper investigates whether child nutrition inequalities are attributable to differences between households or differences within households in Malawi. Child nutrition is measured using height‐for‐age z‐scores. The empirical analysis uses the 2006 Multiple Indicator Cluster Survey data. We find evidence of within household nutritional differences along gender, age and birth order lines in Malawi. The results for rural and urban areas as well as religious groups show that nutrition inequalities largely stem from differences within households. Both intrahousehold and interhousehold nutrition inequalities are unexplained by observable factors.     

An Analysis of Welfare Changes in Zimbabwe*

Abstract: This paper presents a brief account of welfare changes in Zimbabwe along the income and education dimensions between 1995 and 2003. Using sequential dominance procedures, we find that education attainment substantially improved over time. However, these gains did not necessarily translate into poverty reduction, rather welfare over the joint distribution of income and education dramatically deteriorated. These results are robust for all education partitions, income thresholds and a broad class of welfare indices. A further inquiry into the factors underlying this apparent disconnection between education and income using decomposition techniques reveals that the increase in poverty incidence cannot be attributed to household characteristics but is reflective of the broader socio‐economic trends prevailing at the time. The decline in economic growth contributed tremendously to the decline in welfare while inequality changes account for a small proportion.     

Exploring income variations across traditional authorities in KwaZulu‐Natal,South Africa

To understand income inequality and poverty, one must go beyond the important and much‐studied differences rural and urban living and investigate inequalities within rural areas. Using new South African data aggregated by ‘traditional authorities’, this article examines variations in per capita income across poor, rural, mostly black areas of KwaZulu‐Natal (KZN) province. The inequalities are significant. In explaining them, the article examines the importance of such variables as education, proportion of females in the resident population, population density, soil quality and rainfall. A geographical information system is used to map both the raw data and the residuals from a regression analysis, and this combination of statistical and geographical analyses yields new insights. Finally, the article suggests how these techniques might be supplemented by qualitative and quantitative studies of ‘overachieving’ and ‘underachieving’ traditional authorities ‐ those whose incomes per capita are well above or below what regression equations would predict.     

The counting approach to multidimensional poverty. The case of four African countries

This paper investigates the levels and evolution of poverty in Malawi, Mozambique, Tanzania and Zimbabwe using the decomposability properties of poverty measures based on a counting approach. We compare poverty measures such as the Alkire and Foster index with alternative poverty indices that are sensitive to inequality. Poverty is estimated using Demographic and Health Surveys for different years for Malawi (2004, 2010 and 2015), for Mozambique (2003 and 2011), Tanzania (2004, 2010 and 2015) and for Zimbabwe (2005, 2010 and 2015). Our findings show that one obtains insightful information when looking at the breadth and inequality components of multidimensional poverty.     

Spatial inequality in education and health care in China

While increasing income inequality in China has been commented on and studied extensively, relatively little analysis is available on inequality in other dimensions of human development. Using data from different sources, this paper presents some basic facts on the evolution of spatial inequalities in education and healthcare in China over the long run. In the era of economic reforms, as the foundations of education and healthcare provision have changed, so has the distribution of illiteracy and infant mortality. Across provinces and within provinces, between rural and urban areas and within rural and urban areas, social inequalities have increased substantially since the reforms began.     

What has Happened to the Urban Population in Côte d'Ivoire Since the 1980s? An Analysis of Monetary Poverty and Deprivation Over 15 Years of Household Data

This article investigates the evolution of urban poverty in its various dimensions in Côte d'Ivoire since the 1980s. The robustness of the results is checked using dominance criteria. An econometric analysis of poverty complements the analysis. The study shows that the dynamic of poverty in terms of existence conditions can significantly differ from that of monetary poverty. As was the case in the 1980s, monetary poverty increased strongly in the 1990s in spite of a return to sustained growth following the devaluation of the CFA Franc. Poverty in terms of existence conditions rose less before the adjustment and even decreased afterward.     

Aid and Poverty in Africa: Do Well‐being Measures Understate the Progress?

Abstract: In the last 15 years international aid donors to Africa have shifted their focus dramatically toward health and education; the share of social sector support in total aid rose from 33 per cent to 60 per cent from 1990–94 to 2000–2004 alone. If this aid has been effective, it is unlikely to be captured in GDP or income poverty figures. This paper uses the Demographic and Health Survey at multiple points in time to explore changes in well‐being in ten sub‐Saharan African countries. It compares the evolution of both assets and health which are considered as the two main dimensions of well‐being. These dimensions are simultaneously estimated using the structural equation models with latent variables that have been developed in the psychometric literature. The comparisons of well‐being across time in each country are based on the stochastic dominance analysis. The main results suggest that assets and health have improved during the last two decades in most of these countries. A decline in assets is observed for three countries while health deteriorates in two countries. The reduced poverty appears to be explained less by the aid than other factors in most cases.     

Distributional Impact of Globalization‐induced Migration: Evidence from a Nigerian Village

Abstract: One of the contentious issues about the globalization process is the mechanism by which globalization affects poverty and inequality. This paper explores one of the various strands of the globalization–inequality–poverty nexus. Using microlevel survey data from over 300 poor households in the small village of Umuluwe (about 30 miles west of the regional capital of Owerri) in south‐east Nigeria, the paper investigates whether individuals who migrate from the village to take advantage of the urban‐biased globalization process do better than non‐migrant villagers. The paper concludes that, while the migrant villagers tend to earn slightly higher incomes than the non‐migrant villagers, the poverty profiles of both categories of households are essentially the same. In other words, and contrary to conventional wisdom, globalization has not succeeded in alleviating poverty amongst the poor villagers who explicitly took advantage of the process. The paper argues that, by changing relative prices in the urban areas, structural adjustment appears to have eliminated any advantage that globalization may have bequeathed to the migrant villagers.     

The growth,poverty and inequality nexus in South Africa: Cointegration and causality analysis

This study empirically established the long-run relationship and causality effects that exist between growth, poverty and inequality. The analysis was carried out on a panel of nine South African provinces from 1995 to 2012. To capture poverty and inequality in a broader context, two measures of poverty (income and non-income) and three measures of inequality (income, education and land) were adopted for the study. The results confirm that there is a long-run relationship between growth, poverty and inequality. Notable results from the causality tests suggest that growth does not promote equal distribution of income in society but as income distribution begins to equalise, economic growth rises. This is regarded as growth–inequality disconnect. The unidirectional causality, which runs from income poverty to income inequality, suggests that a rising level of income poverty will lead to falling income inequality in the society; likewise, income inequality increases as non-income poverty declines.     

A multidimensional analysis of poverty in China from 1991 to 2006

Most studies have reported non negligible improvements for China in terms of poverty during the last three decades. However, this result is potentially hampered by two limitations. First, it may be contingent to the specific choices made regarding the poverty line and the poverty indices used for the analysis. As a consequence, it may collapse if one uses alternative poverty lines or poverty measures. Second, it results from a focus on the sole monetary aspects of poverty. As income does not cover all facets of well-being and since the relationship between these two concepts are quite fuzzy, it may be worth using a broader view of well-being, hence opting for a multidimensional approach of poverty analysis. In the present paper, these two issues are addressed using multidimensional stochastic dominance procedures on the joint distribution of income, education and health in seven Chinese provinces.     

Investigating Growing Inequality in Mozambique

In this paper, we investigate the long‐term trend of consumption inequality in Mozambique. We show that an imbalanced growth path disproportionally benefited the better‐off and caused increasing inequality, especially in more recent years, curbing the necessary reduction in poverty. Using a regression decomposition technique, our results suggest that this trend was strongly associated with the higher attained education of household heads and with the changes in the structure of the economy (with less workers in the public and subsistence sectors). The trend was, however, mitigated by the tendency for the higher level of attained education and the smaller public sector to become associated with less inequality over time. These results point to the importance of accelerating the expansion of education and improving the productivity of the large subsistence sector to lower inequality in line with the sustainable development goals.     

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.     

Mind the gaps: a political economy of the multiple dimensions of China's rural–urban divide

China's impressive growth has been accompanied by high inequality and a wide rural–urban divide. This paper identifies and examines some of the major dimensions of this divide: income, consumption, education, employment, health care, pensions, access to public services, and the environment. The paper attributes the main causes of the divide to China's urban‐biased development strategies and the resulting lack of social provision of public goods in rural areas. It also highlights the severe and multidimensional constraints on the Chinese peasantry and argues that increased equality and efficiency can now be pursued simultaneously.     

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.     

Household,community, and policy determinants of food insecurity in rural Malawi

This study examines how socio-economic characteristics of households, local conditions, and public programmes are associated with the probability that a farm household in rural Malawi is food insecure. The statistical analysis uses nationally representative data for 8350 randomly-selected households interviewed during 2004/05 for the second Malawi Integrated Household Survey. Regressions are estimated separately for households in the north, centre, and south of Malawi to account for spatial heterogeneity. Results of a multilevel logit model reveal that households are less likely to be food insecure if they have larger cultivated land per capita, receive agricultural field assistance, reside in a community with an agricultural cooperative and relatively high annual rainfall, and are headed by an individual with a high school degree. Factors that positively correlate with household food insecurity are price of maize, price of fertiliser, number of household members, and distance to markets. Implications of these findings for policy are discussed.     

A Diagnostic on the West African Monetary Union

Deploying the classical optimum currency areas (OCA) theory and recent developments in the monetary literature, this paper evaluates the appropriateness of West African Monetary Union (WAEMU) as a monetary zone. Nine macroeconomic dimensions are investigated under which the first four items are quantified against a reference economy, namely the United States, the eurozone or China, while the rest are measured in absolute terms for time periods before and after the 2008‐2009 global financial crisis. Results could signify relative dominance of the three world's largest economies to the West African region. In addition to inherent asymmetries across the union, findings suggest the emerging Chinese yuan as an alternative to the euro as the monetary anchor.