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This comment discusses the robustness of the policy implications of Bellemare, Barrett, and Just's paper, \"The Welfare Impacts of Commodity Price Volatility: Evidence from Rural Ethiopia\" (2013). Bellemare, Barrett, and Just present a theoretical and empirical approach to the estimation of willingness to pay for food price stabilization that accounts for the covolatility of prices, making a significant contribution to the literature. However, in the course of applying their model to data from rural Ethiopia, the authors make an empirical assumption in the treatment of zero-valued income households that produces a distortion in the distribution of household budget shares. This comment identifies the consequences of this assumption for the estimated relationship of poor and wealthy households' willingness to pay for food commodity price stabilization, and shows the results one would obtain under a different, distribution-preserving treatment of zero-valued income. The key finding is that the distributional benefit incidence of food price stabilization found in Bellemare, Barrett, and Just (2013) is reversed when the budget share of marketable surplus is calculated over observed, as opposed to mean, household income where available.

Background Intimate partner violence (IPV) is pervasive throughout the world, with profound consequences for women’s health. While women’s ‘economic empowerment’ is touted as a potential means to reduce IPV, evidence is mixed as to the role of different economic factors in determining women’s risk. This paper explores associations and potential pathways between women’s income and experience of IPV, in Mwanza city, Tanzania. Methods We use data from married/cohabiting women ( N  = 740) enrolled in the MAISHA study, a cluster randomised trial of an IPV prevention intervention. Women were interviewed at baseline and 29-months later. We use logistic regression to model cross-sectional (baseline) and longitudinal associations between: a woman’s monthly income (quartiles) and her past year risk of physical IPV, sexual IPV and economic abuse; and a woman’s relative financial contribution to the household (same/less than partner; more than partner) and past year physical IPV and sexual IPV. Results At baseline, 96% of respondents reported earning an income and 28% contributed more financially to the household than their partner did. Higher income was associated with lower past-year physical IPV risk at baseline and longitudinally, and lower sexual IPV at baseline only. No clear associations were seen between income and economic abuse. Higher relative financial contribution was associated with increased physical IPV and sexual IPV among all women at baseline, though only among control women longitudinally. Higher income was associated with several potential pathways to reduced IPV, including reduced household hardship, fewer arguments over the partner’s inability to provide for the family, improved relationship dynamics, and increased relationship dissolution. Those contributing more than their partner tended to come from more disadvantaged households, argue more over their partner’s inability to provide, and have worse relationship dynamics. Conclusions While women’s income was protective against IPV, women who contributed more financially than their partners had greater IPV risk. Poverty and tensions over men’s inability to provide emerge as potentially important drivers of this association. Interventions to empower women should not only broaden women’s access to economic resources and opportunities, but also work with women and men to address men’s livelihoods, male gender roles and masculinity norms. Trial registration ClinicalTrials.gov #NCT02592252 , registered retrospectively (13/08/2015).

A double burden of malnutrition occurs when individuals, household members or communities experience both undernutrition and overweight. Here, we show geospatial estimates of overweight and wasting prevalence among children under 5 years of age in 105 low- and middle-income countries (LMICs) from 2000 to 2017 and aggregate these to policy-relevant administrative units. Wasting decreased overall across LMICs between 2000 and 2017, from 8.4% (62.3 (55.1–70.8) million) to 6.4% (58.3 (47.6–70.7) million), but is predicted to remain above the World Health Organization’s Global Nutrition Target of <5% in over half of LMICs by 2025. Prevalence of overweight increased from 5.2% (30 (22.8–38.5) million) in 2000 to 6.0% (55.5 (44.8–67.9) million) children aged under 5 years in 2017. Areas most affected by double burden of malnutrition were located in Indonesia, Thailand, southeastern China, Botswana, Cameroon and central Nigeria. Our estimates provide a new perspective to researchers, policy makers and public health agencies in their efforts to address this global childhood syndemic. Fine-scale geospatial mapping of overweight and wasting (two components of the double burden of malnutrition) in 105 LMICs shows that overweight has increased from 5.2% in 2000 to 6.0% in children under 5 in 2017. Although overall wasting decreased over the same period, most countries are not on track to meet the World Health Organization’s Global Nutrition Target of <5% in over half of LMICs by 2025.

Objectives: Policies that increase household income, such as the earned income tax credit (EITC), have shown reductions on risk factors for child maltreatment (ie, poverty, maternal stress, depression), but evidence is lacking on whether the EITC actually reduces child maltreatment. We examined whether states’ EITCs are associated with state rates of hospital admissions for abusive head trauma among children aged <2 years. Methods: We conducted difference-in-difference analyses (ie, pre- and postdifferences in intervention vs control groups) of annual rates of states’ hospital admissions attributed to abusive head trauma among children aged <2 years (ie, using aggregate data). We conducted analyses in 14 states with, and 13 states without, an EITC from 1995 to 2013, differentiating refundable EITCs (ie, tax filer gets money even if taxes are not owed) from nonrefundable EITCs (ie, tax filer gets credit only for any tax owed), controlling for state rates of child poverty, unemployment, high school graduation, and percentage of non-Latino white people. Results: A refundable EITC was associated with a decrease of 3.1 abusive head trauma admissions per 100 000 population in children aged <2 years after controlling for confounders (P = .08), but a nonrefundable EITC was not associated with a decrease (P = .49). Tax refunds ranged from $108 to $1014 and $165 to $1648 for a single parent working full-time at minimum wage with 1 child or 2 children, respectively. Conclusions: Our findings with others suggest that policies such as the EITC that increase household income may prevent serious abusive head trauma.

The rapid increase of wealth inequality in the past few decades is one of the most disturbing social and economic issues of our time. Studying its origin and underlying mechanisms is essential for policy aiming to control and even reverse this trend. In that context, controlling the distribution of income, using income tax or other macroeconomic policy instruments, is generally perceived as effective for regulating the wealth distribution. We provide a theoretical tool, based on the realistic modeling of wealth inequality dynamics, to describe the effects of personal savings and income distribution on wealth inequality. Our theoretical approach incorporates coupled equations, solved using iterated maps to model the dynamics of wealth and income inequality. Notably, using the appropriate historical parameter values we were able to capture the historical dynamics of wealth inequality in the United States during the course of the 20th century. It is found that the effect of personal savings on wealth inequality is substantial, and its major decrease in the past 30 years can be associated with the current wealth inequality surge. In addition, the effect of increasing income tax, though naturally contributing to lowering income inequality, might contribute to a mild increase in wealth inequality and vice versa. Plausible changes in income tax are found to have an insignificant effect on wealth inequality, in practice. In addition, controlling the income inequality, by progressive taxation, for example, is found to have a very small effect on wealth inequality in the short run. The results imply, therefore, that controlling income inequality is an impractical tool for regulating wealth inequality.

This paper nonparametrically estimates the distribution of world citizens’ income and investigates world income inequality for the period from 1970 to 2010. We consider 188 countries that account for 98.68% of the world population and almost 100% of the world GDP in the year 2010. Various income inequality indices such as the Gini coefficient reveal that the world income inequality dramatically decreased during the 2000s, whereas it only slightly declined from 1970 to 2000, because the across-country inequality component substantially decreased during the 2000s even if the within-country inequality component kept increasing during the 1990s and the 2000s. These findings still hold when we include top income tax data in the analysis. We also propose more sophisticated methods to impute missing top income share data and to combine them with income survey data.

In this paper, we report results from surveys in which enumerators made unannounced visits to primary schools and health clinics in Bangladesh, Ecuador, India, Indonesia, Peru and Uganda and recorded whether they found teachers and health workers in the facilities. Averaging across the countries, about 19 percent of teachers and 35 percent of health workers were absent. The survey focused on whether providers were present in their facilities, but since many providers who were at their facilities were not working, even these figures may present too favorable a picture. For example, in India, one-quarter of government primary school teachers were absent from school, but only about one-half of the teachers were actually teaching when enumerators arrived at the schools. We will provide background on education and health care systems in developing; analyze the high absence rates across sectors and countries; investigate the correlates, efficiency, and political economy of teacher and health worker absence; and consider implications for policy.

Unconditional cash interventions, such as guaranteed income, are a proposed solution for mediating the adverse health outcomes associated with financial scarcity. To test this, the City of Los Angeles, California, conducted a mixed-methods, randomized controlled trial in which they gave 3202 people $1000 with no strings attached for 12 months in 2022. Although the quantitative findings demonstrated mixed health effects, the qualitative findings highlighted how recipients viewed their well-being as an insurance policy against scarcity and reallocated time to preventive health behaviors when receiving a guaranteed income. ( Am J Public Health. 2025;115(8):1222–1225. https://doi.org/10.2105/AJPH.2025.308125 )

This article combines tax, survey, and national accounts data to estimate the distribution of national income in the United States since 1913. Our distributional national accounts capture 100% of national income, allowing us to compute growth rates for each quantile of the income distribution consistent with macroeconomic growth. We estimate the distribution of both pretax and posttax income, making it possible to provide a comprehensive view of how government redistribution affects inequality. Average pretax real national income per adult has increased 60% from 1980 to 2014, but we find that it has stagnated for the bottom 50% of the distribution at about $16,000 a year. The pretax income of the middle class—adults between the median and the 90th percentile—has grown 40% since 1980, faster than what tax and survey data suggest, due in particular to the rise of tax-exempt fringe benefits. Income has boomed at the top. The upsurge of top incomes was first a labor income phenomenon but has mostly been a capital income phenomenon since 2000. The government has offset only a small fraction of the increase in inequality. The reduction of the gender gap in earnings has mitigated the increase in inequality among adults, but the share of women falls steeply as one moves up the labor income distribution, and is only 11% in the top 0.1% in 2014.

BackgroundDisrupting women’s employment is a strategy that abusive partners could use to prevent women from maintaining economic independence and stability. Yet, few studies have investigated disruptions in employment among victims of intimate partner violence (IPV) in low-income and middle-income countries. Moreover, even fewer have sought to identify which female victims of IPV are most vulnerable to such disruptions.MethodsUsing baseline data from 947 women in Mexico City enrolled in a randomised controlled trial, multilevel latent class analysis (LCA) was used to classify women based on their reported IPV experiences. Furthermore, multilevel logistic regression analyses were performed on a subsample of women reporting current work (n=572) to investigate associations between LCA membership and IPV-related employment disruptions.ResultsOverall, 40.6% of women who were working at the time of the survey reported some form of work-related disruption due to IPV. LCA identified four distinct classes of IPV experiences: Low Physical and Sexual Violence (39.1%); High Sexual and Low Physical Violence class (9.6%); High Physical and Low Sexual Violence and Injuries (36.5%); High Physical and Sexual Violence and Injuries (14.8%). Compared with women in the Low Physical and Sexual Violence class, women in the High Physical and Sexual Violence and Injuries class and women in the High Physical and Low Sexual Violence and Injuries class were at greater risk of work disruption (adjusted relative risk (ARR) 2.44, 95% CI 1.80 to 3.29; ARR 2.05, 95% CI 1.56 to 2.70, respectively). No other statistically significant associations emerged.ConclusionIPV, and specific patterns of IPV experiences, must be considered both in work settings and, more broadly, by economic development programmes.Trial registration numberNCT01661504.