Earnings inequality and unemployment in South Africa

Unemployment and earnings inequality have moved together remarkably closely in South Africa in recent years. This article explores the relationship between unemployment and earnings inequality in South Africa, investigating the extent to which changes in unemployment can account for changes in earnings inequality. Static and dynamic decompositions of earnings inequality by employment status reveal the centrality of unemployment in accounting for the both level and trend of earnings inequality. The distribution of employment in the formal and informal sectors is found to be of lesser importance in explaining earnings inequality, as is wage dispersion within each of these categories. The findings point to the central importance of reducing unemployment in South Africa if the extremely high levels of inequality are to be reduced.     

The impact of redistributive policies on inequality in OECD countries

Due to behavioural effects triggered by redistributional interventions, it is still an open question whether government policies are able to effectively reduce income inequality. We contribute to this research question by using different country-level data sources to study inequality trends in OECD countries since 1980. We first investigate the development of inequality over time before analysing the question of whether governments can effectively reduce inequality. Different identification strategies, using fixed effects and instrumental variables models, provide some evidence that governments are capable of reducing income inequality despite countervailing behavioural responses. The effect is stronger for social expenditure policies than for progressive taxation.     

The short- and long-run impacts of financial crises on youth unemployment in OECD countries

The impact of financial crises on the youth unemployment rate (YUR), compared to the total unemployment rate (UR), is estimated for a panel of OECD countries over the period 1981–2009, using bias-corrected dynamic panel data estimators of short- and long-run coefficients. Both YUR and UR are found highly persistent. Also, short- and long-run effects of financial crises on YUR are significantly large, respectively, some 1.9 and 1.5–1.7 times higher than the short- and long-run effects on UR. Similar results are found for the unemployment impacts of GDP growth lagged 1 year and institutional variables. These results are robust to various dynamic specifications.     

The impact of growth and inequality on rural poverty in China

This paper analyzes the evolution of poverty in China from the late 1980s to the late 1990s, employing a version of Shapley decomposition tailored to unit-record household survey data. The changes in poverty trends are attributed to two proximate causes—income growth and shifts in income distribution. Different data sets, poverty lines, poverty measures, and equivalence scales are used to examine the robustness of the results. Potential biases arising from ignoring differential regional prices and inflation are also investigated. Notwithstanding some ambiguities in the results, it is consistently found that rural poverty increased in the second half of the 1990s and adverse distributional changes are the main cause. Journal of Comparative Economics 34 (4) (2006) 694–712.     

The impact of natural disasters on household income,expenditure, poverty and inequality: evidence from Vietnam

Natural disasters are expected exacerbate poverty and inequality, but little evidence exists to support the impact at household level. This article examines the effect of natural disasters on household income, expenditure, poverty and inequality using the Vietnam Household Living Standard Survey in 2008. The effects of a natural disaster on household income and expenditure, corrected for fixed effects and potential endogeneity bias, are estimated at 6.9% and 7.1% declines in Vietnamese household per capita income and expenditure, respectively. Natural disasters demonstrably worsen expenditure poverty and inequality in Vietnam, and thus should be considered as a factor in designing poverty alleviation policies.     

Migration and urban poverty and inequality in China

Using data from recent surveys of migrants and local residents in ten cities in 2005, this paper examines how migration influences measurements of urban poverty and inequality in China, and also compares how other indicators of well-being differ for migrants and local residents. Contrary to previous studies that report that the income poverty rate of migrant households is 1.5 times that of local resident households, we find relatively small differences in the poverty rates of migrants and local residents. Although the hourly wages of migrants are much lower than those of local residents, migrant workers work longer hours and have lower dependency ratios and higher labor force participation rates. Including migrants increases somewhat measures of urban income inequality. Significant differences between migrants and local residents are found for non-income welfare indicators such as housing conditions and access to social insurance programs.     

A comparison of the poverty impact of transfers, taxes and market income across five OECD countries

This paper compares the poverty reduction impact of income sources, taxes and transfers across five OECD countries. Since the estimation of that impact can depend on the order in which the various income sources are introduced into the analysis, it is done by using the Shapley value. Estimates of the poverty reduction impact are presented in a normalized and unnormalized fashion, in order to take into account the total as well as the per dollar impacts. The methodology is applied to data from the Luxembourg Income Study database.     

Growth, income distribution and well-being in transition countries

We apply several well-being measures that combine average income with a measure of inequality to international and intertemporal comparisons of well-being in transition countries. Our well-being measures drastically change the impression of levels and changes in well-being compared to a traditional reliance on income measures. Due to low inequality and moderate income levels, socialist countries enjoyed relatively high levels of economic well-being. In the transition process, rising inequality and falling incomes have led to a dramatic absolute decline in well-being and a considerable drop in relative well-being vis-à-vis non-transition countries. We also find a close correlation between income losses and inequality increases. While the transition has been successful in expanding political and civil rights, our indicators suggest that most transition countries are still below the level of economic well-being of the late 1980s.
JEL classification: D6, O15, P27.     

The impact of tax reforms on unemployment in a SMOPEC

This paper analyzes revenue-neutral tax reforms for a small open economy which is constrained to a balanced current account and whose producers have market power on the world market. We consider origin-based and destination-based commodity taxes as well as taxes on income, the payroll, and on an imported factor of production. Our main findings are the following. First, the strength, and for some parameter constellations, even the sign of the employment effect of tax reforms varies with the degree of openness of the economy. Second, the indeterminacy of the sign of the employment effect crucially hinges on the presence of an internationally mobile factor. The central mechanism underlying our results are adjustments of the real exchange rate which have repercussions on wage and price setting and therefore on employment.     

The impact of education expansion on wage inequality

The findings on education expansion and income inequality have important implications for policymakers to implement effective policies to reduce income inequality. This study attempts to explain how education expansion affects income inequality by education distribution and the rate of return to education. We decompose the effect of education expansion on wage gaps into price effect and structure effect. We compare the income inequality from 2002 to 2013 using the Chinese Household Income Project (CHIP) 2002 and CHIP2013 survey data and employ FFL decomposition method. Our findings suggest that income inequality increased in 2013 and that income inequality among the high-income groups increased even more significantly. The structure effect of education expansion on income inequality is negative, when average education increases one year, the income gap between 80th and 20th will decrease 1.2%, in other words, education expansion decreases income inequality by allowing a wide range of individuals to attend college. However, this effect is offset by the price effect, which is positive and much more significant in magnitude. One extra year of average education will increase income gap by 29% which means that the demand for high-skilled labour is increasing faster than the supply and thus lead to the increasing premium for higher education return.     

Economic inequality in Spain: the european community household panel dataset

This article uses data from the 1998 European Community Household Panel to study economic inequality in Spain. It reports data on the Spanish distributions of income, labor income, and capital income, and on related features of inequality, such as age, employment status, educational attainment, and marital status. It also reports data on the income mobility of Spanish households, and data on income inequality in other European countries and in the US. We find that income, earnings, and, especially, capital income are very unequally distributed in Spain and that economic inequality in Spain is well above the European average.     

On the impact of innovation and inequality in economic growth

We present robust results on the empirical relationship among income inequality, innovation, and economic growth for a panel dataset of 74 countries over the period 1996–2014. We estimate pairwise causality tests to show that there is bidirectional causality between GDP per capita and R&D, while R&D causes the Gini index of income inequality, and it causes human capital. Allowing coefficients to be different across cross-sections of countries, we get in any case a pairwise bi-directionality. By dynamic panel data estimations, when regressing R&D on GDP per capita, we obtain a threshold value of 0.16% of R&D such that for values above it there is economic growth. While regressing R&D on the Gini index, we get a threshold of 0.10% of R&D above which, the income distribution begins to improve. Finally, we estimate a growth equation that depends on R&D, income inequality, and physical capital. We obtain two thresholds, one of 38.79 for the Gini (above which the economic growth decreases), and one of 0.06% for R&D such that above it, economic growth is rising.     

Cross-country evidence on the distributional impact of fiscal policy

This article provides new evidence on the distributional effects of fiscal policy using data on a panel of OECD economies over the last four decades. We study how four measures of income inequality and poverty respond to several stock and flow variables accounting for fiscal actions. We find that increases in government debt and expenditure promote a less unequal distribution of income. We detect a significant distributional impact of education and social spending as well as of government consumption expenditure. We also investigate potential redistributive implications of large fiscal expansion and consolidation episodes finding no evidence of additional effects beyond those associated with conventional fiscal variables.

Abbreviations: OECD: Organisation for Economic Co-operation and Development; GDP: Gross Domestic Product; G20: Group of 20 economies (forum of 19 dvanced and emerging countries plus the European Union); CGE: Computational General Equilibrium models; DSGE: Dynamic Stochastic General Equilibrium models; UN-WIDER: United Nations World Institute for Development Economics Research; SWIID: Standardized World Income Inequality Database; WDI: World Development Indicators; PPP: Purchasing-Power Parity; LIS: Luxembourg Income Database; GMM: Generalized Method of Moments; FE: Fixed Effects; RE: Random Effects; SE: Standard Errors; CPI: Consumer Price Index     

National pro-poor spending programmes and their effect on income inequality and poverty: Evidence from Vietnam

This article examines the causal effects of the national (pro-poor) targeted programmes (NTPs) on both poverty incidence and inequality in Vietnam over the period 2002–2010. While the links between NTPs and poverty alleviation and income inequality have previously been analysed independently, this study is the first to offer a comprehensive analysis of NTPs expenditure on poverty and inequality simultaneously. Applying the system generalized method of moments estimator to a panel of Vietnamese regional data, we are unable to establish that NTPs have significantly mitigated poverty incidence. However, we estimate that NTPs have significantly increased inequality. We offer possible explanations why the NTPs have resulted in these unintended outcomes and discuss potential policies which can reduce both poverty and inequality.     

Poverty among ethnic minorities: the transition process,inequality and economic growth

This article investigates the process of reducing poverty in ethnic minority households. Using two recent Vietnam household surveys, we find that ethnic minority households are more likely to be persistently poor and less likely to be persistently non-poor than ethnic majority households. The within-group component generated by the variation in income within each ethnicity group explains more than 90% of the change in total inequality. Income redistribution plays an important role in decreasing the poverty gap and decreasing poverty severity. Different ethnic groups have different poverty patterns, which should be noted when designing policies to alleviate poverty and inequality.     

Dynamic persistence in the unemployment rate of OECD countries

Previous studies use a variety of increasingly advanced unit root tests to determine whether Blanchard and Summers (1986) hysteresis theory of unemployment or the classical ‘natural’ rate theory of Friedman (1968) and Phelps (1967, 1968) is most relevant for a given country. However these tests all specify a unit root under the null hypothesis against a stationary alternative, such as in the paper by Lee and Chang (2008), making the two theories of unemployment mutually exclusive over the sample period. This paper moves away from this dichotomy by allowing for switches between hysteresis and the natural rate theory using the recently developed test of Leybourne, Kim and Taylor (2007). We find that in countries like the United Kingdom, the natural rate theory is detected in the post-World War Two period of stabilisation: the time leading up to the seminal works of Friedman and Phelps. Hysteresis is found over the First World War and Great Depression periods, and in the period from the 1970s; a time characterised by rising trade union power. We also compute numerical measures of persistence using grid-bootstrap estimates of the autoregressive parameter, following Hansen (1999).     

Economic growth,the nature of growth and poverty reduction in rural China

This paper examines some of the major driving forces of poverty reduction in China. Based on time series and cross-sectional provincial data, the determinants of rural poverty incidence are estimated. The results show that economic growth is an essential and necessary condition for nationwide poverty reduction. It is not, however, a sufficient condition. While economic growth played a dominant role in reducing poverty through the mid-1990s, its impact has diminished since that time. Beyond general economic growth, growth in specific sectors of the economy is also found to be effective in reducing poverty. The finding of our paper is consistent with the idea that poverty reduction in the future will need to be adjusted with more emphasis being given on direct targeting through helping the poor to increase their human capital and incomes.     

多维度视角下贫困问题的再探析

在多维度视角下,从收入分配、地理环境、气候变化和教育制度四个方面详细分析贫困产生的原因,并提出相应减少贫困的措施,建议政策制定者在我国当前经济迅速发展和社会财富较快增长时期,采取措施缩小贫富悬殊和减少贫困,实现社会稳定发展。     

A Survey of the Economic Systems of Wild Chimpanzees and Baboons

This article reviews neoclassical, environmentalist, and institutionalist perspectives on the emerging institutional adjustments commonly referred to as water trading or water marketing. Although a holistic analysis of these emerging institutional reforms would be far more comprehensive and detailed, this article seeks only to provide an institutionalist perspective that may benefit more comprehensive research. As such, analysis of new sources of water supply, of specific water conservation measures, and of attitudes regarding water are largely neglected. Water trading is merely assessed in the context of the evolving legal structure and the existing, limited water supply in the American West, particularly California. The conclusion is that water trading, if properly administered, can generally benefit involved parties without widespread social costs and without jeopardizing social control.     

Calculation and decomposition of income inequality in low- and middle-income countries: a survey data analysis

This article estimates income inequality in a sample of four low- and middle-income (LMI) countries namely; Albania, Nepal, Tajikistan and Tanzania using the household survey data – Nepal Living Standard Measurement Survey Second. First, we estimate the income generation function for each country and calculate the income inequality using Gini index (GI). Second, we decompose the income Gini into the determinants of income generation functions. Based on the decomposition result, socio-economic factors are the most important determinants of income inequality followed by geographic factors. Demographic factors have the least effect on income inequality in all four countries. Third, we propose a new method to quantify the effect of change in each covariate of income generation function on income Gini. That allows us to quantify the effects of change in specific policy such as increase in investment in schooling or public health to specific group of the population in society on income inequality. A carefully chosen, integrated policy can significantly reduce inequality in all four countries under study.