Beliefs about social mobility in young American children.

Although actual experiences of upward social mobility are historically low, many adolescents and adults express a belief in social mobility (e.g., that social status can change). Although a belief in upward mobility (e.g., that status can improve) can be helpful for economically disadvantaged adolescents and adults, a belief in upward social mobility in adults is also associated with greater acceptance of societal inequality. While this belief might have similar benefits or consequences in children, no previous work has examined whether children are even capable of reasoning about social mobility. This is surprising, given that elementary-aged children exhibit sophisticated reasoning about both social status, as well as about the fixedness or malleability of properties and group membership. Across an economically advantaged group of 5- to 12-year-old American children (N = 151, Mage = 8.91, 63% racial majority, 25% racially marginalized; Mhousehold income = $133,064), we found evidence that children can reason about social mobility for their own families and for others. Similar to research in adults, children believe that others are more likely to experience upward than downward mobility. However, in contrast to adult's typical beliefs-but in line with economic realities-between 7- and 9-years-old, children become less likely to expect upward mobility for economically disadvantaged, versus advantaged, families. In sum, children are capable of reasoning about social mobility in nuanced ways; future work should explore the implications of these beliefs. RESEARCH HIGHLIGHTS: Despite harsh economic realities, a belief in upward social mobility and the American Dream is alive and well. Between 7 and 9 years of age, economically advantaged, American children begin to expect economically disadvantaged families to experience less upward mobility than economically advantaged families. Children's beliefs about social mobility better accord with reality than adults' do.

Eight Decades of Educational Assortative Mating: A Research Note.

Recent social and economic trends in the United States, including increasing economic inequality, women's growing educational advantage, and the rise of online dating, have ambiguous implications for patterns of educational homogamy. In this research note, we examine changes in educational assortative mating in the United States over the last eight decades (1940 to 2020) using the U.S. decennial censuses and the American Community Survey, extending and expanding earlier work by Schwartz and Mare. We find that the rise in educational homogamy noted by Schwartz and Mare has not continued. Increases in educational homogamy stalled around 1990 and began reversing in the 2000s. We find a growing tendency for marriages to cross educational boundaries, but a college degree remains the strongest dividing line to intermarriage. A key trend explaining this new pattern is women's increasing tendency to marry men with less education than themselves. If not for this trend, homogamy would have continued increasing until the early 2010s. We also show substantial heterogeneity by race, ethnicity, and nativity and among same- versus different-sex couples.

Balancing Nutrition and Budgets: Socio-Ecological Impacts on Nutritional Environments of Families with Low Incomes.

BACKGROUND: Research on childhood nutritional environments, which are predictive of a variety of child and family health and wellbeing outcomes, has primarily focused on parenting behaviors and the home food environment. However, broader social and community factors play an important role in shaping nutritional environments during early childhood. Food security is key example that is closely linked to nutrition-related health disparities, which can arise from constrained financial resources and material deprivations. Understanding parent and caregiver lived experiences related to social and community components of family nutritional environments in the context of economic constraints could help to support multi-level nutritional practices that are optimal for healthy child development. METHOD: Semi-structured in-depth interviews were conducted using a narrative approach with parents (n=21) of pre-school aged children living near or below the poverty line. Participants were recruited from social and community service sites pertinent to maternal and child health in Philadelphia where health disparities are highly concentrated. Analysis was conducted using MAX QDA analytic software following a systematic approach for thematic analysis in narrative research. RESULTS: Three themes describe the feeding and eating environments in the home and community context: 1) Food Procurement and Meal Planning; 2) Family Togetherness; 3) Creativity, Variety, and Flexibility. Creative decision making and food procurement strategies responsive to child preferences were balanced by shopping to save and visiting multiple stores for the best foods and savings. Logistical (e.g., transportation, childcare) and emotional supports facilitated food shopping habits and routines, while lack of trusted childcare, reliable transportation, and social support barriers challenged feeding and eating decisions. CONCLUSION: Strategies for improving cost and time-efficiencies could help support health-promoting nutritional environments of families with food insecurity. Building social and community capacity and facilitating connections to practical supports that include trustworthy childcare and peer support may be particularly important for this population.

Testing the efficacy of three informational interventions for reducing misperceptions of the Black-White wealth gap.

Americans remain unaware of the magnitude of economic inequality in the nation and the degree to which it is patterned by race. We exposed a community sample of respondents to one of three interventions designed to promote a more realistic understanding of the Black-White wealth gap. The interventions conformed to recommendations in messaging about racial inequality drawn from the social sciences yet differed in how they highlighted data-based trends in Black-White wealth inequality, a single personal narrative, or both. Data interventions were more effective than the narrative in both shifting how people talk about racial wealth inequality-eliciting less speech about personal achievement-and, critically, lowering estimates of Black-White wealth equality for at least 18 mo following baseline, which aligned more with federal estimates of the Black-White wealth gap. Findings from this study highlight how data, along with current recommendations in the social sciences, can be leveraged to promote more accurate understandings of the magnitude of racial inequality in society, laying the necessary groundwork for messaging about equity-enhancing policy.

Analyzing the dynamic effect of energy endowment-demand distortion on sustainable development: Insights from China's regional disparity.

The distribution of China's energy resources is concentrated in the central and western regions, whereas the energy demand is predominantly centered in the eastern regions. Under the ambitious "carbon neutrality" goal, how to effectively quantify and respond to the impact of this energy "endowment-demand" distortion (EEDD) on economy and environment has become a key issue. We introduce an EEDD index that quantifies the distortion characteristics of China's energy endowment and demand. Based on the EEDD index, a panel vector auto regression-generalized method of moments (PVAR-GMM) model is adopted to assess the interactive effects between regional EEDD and sustainable development variables. The obtained results indicate that the energy endowment-demand distortions are progressively worsening across most provinces. Interestingly, we discover that the EEDD has significant beneficial effects on regional sustainable development. Moreover, the EEDD is found to be significantly influenced by the sustainability-related variables. These impacts between EEDD and sustainable development variables demonstrate significant regional heterogeneity. This study provides crucial empirical evidence for advancing the comprehensive and sustainable development of regional energy, environment, and economy.

Individual values predict desiring more economic inequality: The moderator role of social mobility.

Attitudes towards economic inequality are crucial to uphold structural economic inequality in democratic societies. Previous research has shown that socioeconomic status, political ideology, and the objective level of economic inequality associated with individuals' attitudes towards economic inequality. However, some have suggested that people are aware of the individual and social features that are more functional according to the level of economic inequality. Therefore, individual predispositions such as cultural values could also predict these attitudes. In the current research, we expand previous results testing whether cultural variables at the individual level predict attitudes towards economic inequality. After analysing survey data including samples from 52 countries (N = 89,565), we found that self-enhancement values predict positively, and self-transcendence negatively, attitudes towards economic inequality as the ideal economic inequality measures. This result remained significant even after controlling by socioeconomic status, political ideology, and objective economic inequality. However, this effect is only true in high and middle social mobility countries, but not in countries with low social mobility. The present research highlights how cultural values and country social mobility are crucial factors to addressing attitudes towards economic inequality.

Why is violence high and persistent in deprived communities? A formal model.

There is massive variation in rates of violence across time and space. These rates are positively associated with economic deprivation and inequality. They also tend to display a degree of local persistence, or 'enduring neighbourhood effects'. Here, we identify a single mechanism that can produce all three observations. We formalize it in a mathematical model, which specifies how individual-level processes generate the population-level patterns. Our model assumes that agents try to keep their level of resources above a 'desperation threshold', to reflect the intuitive notion that one of people's priorities is to always meet their basic needs. As shown in previous work, being below the threshold makes risky actions, such as property crime, beneficial. We simulate populations with heterogeneous levels of resources. When deprivation or inequality is high, there are more desperate individuals, hence a higher risk of exploitation. It then becomes advantageous to use violence, to send a 'toughness signal' to exploiters. For intermediate levels of poverty, the system is bistable and we observe hysteresis: populations can be violent because they were deprived or unequal in the past, even after conditions improve. We discuss implications of our findings for policy and interventions aimed at reducing violence.

The buffering effect of social capital for daily mental stress in an unequal society: a lesson from Seoul.

This study attempted to illustrate whether mental health deterioration could be alleviated by high social capital in an environment with high economic inequality. Daily mental stress was employed as a mental health factor when analyzing the association with economic inequality in the Seoul Survey data. Regarding social capital, community trust and altruism were included as cognitive dimensions, and participation and cooperation were included as structural dimensions in each model. The first finding showed a significantly positive relationship between economic inequality and daily stress, meaning that, like other mental health problems, daily mental stress is also high in regions with high economic inequality. Second, the slope of the daily stress increased in respondents with high social trust and participation was alleviated in an economically unequal environment. This indicates that social trust and participation have a buffering effect by moderating the slope of daily stress in societies with high inequality. Third, the buffering effect differs depending on the social capital factor. The buffering effect of trust and participation showed in an unequal environment, while the buffering effect of cooperation showed regardless of the unequal environment. In summary, social capital factors showed the effect of relieving daily mental stress in the relationship with economic inequality. Also, the buffering effect of social capital on mental health may show different aspects for each element.

Spatiotemporal change in socioeconomic inequality in hygienic menstrual product use among adolescent girls in India during 2015-2019.

BACKGROUND: The use of hygienic products, such as sanitary napkins, tampons, and menstrual cups, to absorb menstrual blood is vital for the health and well-being of adolescent girls in India. However, the degree of inequity in the use of such products among this subpopulation remains inadequately explored. To fill this critical knowledge gap, this study aims to investigate the spatiotemporal dynamics of hygienic product use among adolescent girls in India from 2015 to 2020. METHODS: In this cross-sectional study, we analyzed data from 117,749 to 114,839 adolescent girls aged 15-19, obtained from two consecutive rounds of the National Family Health Survey (NFHS) conducted in India during 2015-16 and 2019-21. Our approach involved utilizing Erreygers' Concentration Index (ECI) and Concentration Curve to quantitatively assess and visually represent socioeconomic inequality in hygienic product usage. Additionally, we investigated the spatiotemporal variation in this inequality over the study period and decomposed the ECI to identify the key contributing factors. RESULTS: The findings reveal that hygienic product usage among adolescent girls in India has increased by 13 percentage points (PP), from 37% in 2015-16 to 50% in 2019-21. This increase is also visible across all household wealth quintiles. However, the bottom quintiles experienced a greater rise (+ 15 to 16 PP) than the top quintile (+ 8 PP). During the study period, the ECI reduced marginally, from 0.48 in 2015-16 to 0.43 in 2019-21. However, the extent of this reduction varied across different states. The greatest reduction in ECI was recorded in Punjab (-0.23 points), Telangana (-0.16 points), and West Bengal (-0.14 points). In contrast, there were a number of states with high socioeconomic inequality (ECI > 0.30) in 2015-16, where inequality reduction was minimal (< 0.05 points) over the study period. This included more developed states of Kerala, Karnataka, Maharashtra and Gujarat and relatively less developed states of Odisha, Jharkhand, Chhattisgarh, Uttar Pradesh, and Assam. Some states, such as Bihar and Madhya Pradesh, recorded an increase in socioeconomic inequality over the study period, with ECI rising to 0.31 and 0.46 (highest in the country) in 2019-21. The decomposition analysis revealed that the inequality in using hygienic products was primarily explained by place of residence, exposure to mass-media, education, and region of residence. CONCLUSIONS: The findings suggest the need for targeted policies to reduce existing socioeconomic inequality in the usage of hygienic products among adolescent girls in India. Specifically, interventions should target regions with low use of hygienic products, economically disadvantaged groups, and poor and vulnerable populations. State-specific policies and programs are also necessary to address the disparities in socioeconomic inequality. Additionally, efforts to reduce inequality should address the underlying factors contributing to inequality.

Prevalence and determinants of socioeconomic inequality in caesarean section deliveries in Bangladesh: an analysis of cross-sectional data from Bangladesh Demographic Health Survey, 2017-18.

BACKGROUND: Caesarean section deliveries, which involve incisions in the abdomen and uterus of the mother, have been a widespread event among women with obstructed labour. The current study not only estimated the socioeconomic and demographic factors of caesarean deliveries in Bangladesh but also decomposed the existing socioeconomic inequality in caesarean deliveries. DATA AND METHODS: 2017-18 Bangladesh Demographic and Health Survey (BDHS) data was used for this study. The adequate sample size for the analysis was 5,338 women aged 15-49 years who had given birth at a health facility for three years preceding the survey. Explanatory variables included women's age, women's educational level, women's working status, mass media exposure, body mass index (BMI), birth order, Ante Natal Care (ANC) visits, place of delivery, partner's education and occupation, religion, wealth index, place of residence, and divisions. Descriptive statistics along with bivariate and multivariate logistic regression analysis was performed to identify the factors associated with the outcome variable. Concentration index and concentration curve were made to measure the socioeconomic inequality in caesarean births in Bangladesh. Further, Wagstaff decomposition analysis was used to decompose the inequalities in the study. RESULTS: About one-third of the deliveries in Bangladesh were caesarean. Education of the women and the family's wealth had a positive relationship with caesarean delivery. The likelihood of caesarean delivery was 33% less among working women than those who were not working [AOR: 0.77; CI: 0.62-0.97]. Women who had mass media exposure [AOR: 1.27; CI: 0.97-1.65], overweight/obese [AOR: 1.43; CI: 1.11-1.84], first birth order, received four or more Antenatal check-ups (ANC) [AOR: 2.39; CI: 1.12-5.1], and delivered in a private health facility [AOR: 6.69; CI: 5.38-8.31] had significantly higher likelihood of caesarean delivery compared to their counterparts. About 65% of inequality was explained by place of delivery followed by wealth status of the household (about 13%). ANC visits explained about 5% of the inequality. Furthermore, the BMI status of the women had a significant contribution to caesarean births-related inequality (4%). CONCLUSION: Socioeconomic inequality prevails in the caesarean deliveries in Bangladesh. The place of delivery, household wealth status, ANC visits, body mass index, women's education and mass media have been the highest contributors to the inequality. The study, through its findings, suggests that the health authorities should intervene, formulate specialized programs and spread awareness about the ill effects of caesarean deliveries amongst the most vulnerable groups of women in Bangladesh.

National and regional economic inequalities in first- and second-hand tobacco consumption among women of reproductive ages in Iran.

INTRODUCTION: The epidemic of tobacco consumption is one of the major public health threats the world has been facing so far. This study was performed to investigate the economic inequalities in tobacco consumption among women of reproductive ages at national and regional levels in Iran. METHODS: We used data from 10,339 women of reproductive ages (18-49 years) who participated in Iran's 7th Non-Communicable Disease Risk Factor Surveillance (STEPS). Wagstaff normalized concentration index and decomposition method were applied to measure economic inequalities in first- and second-hand tobacco consumption and determine their corresponding contributory factors, respectively. RESULTS: The prevalence of women's first-hand tobacco consumption, and their exposure to second-hand smoke in the home, and workplace were 3.6%, 28.3%, and 8.4%, respectively. First- and second-hand tobacco consumption was significantly more concentrated among low-economic women. Exposure to home second-hand smoke, education, and economic status had the largest contributions to the measured inequality in first-hand tobacco consumption (48.9%, 38.9%, and 30.8%, respectively). The measured inequality in women's secondhand smoke exposure at home was explained by their level of education (43.8%), economic status (30.3%), and residency in rural areas (18%), and at work by residency in rural areas (42.2%), economic status (38.8%), and level of education (32%). Our results also revealed diversity in the geographical distribution of inequalities in rural and urban areas and five regions of the country. CONCLUSION: The present study highlighted the need for more enforcement of tobacco control rules and increasing tobacco taxes as general measures. Furthermore, there is a need for gender-sensitive initiatives at national and regional levels to educate, support, and empower low-economic women and households for tobacco cessation, and complying with restrictive smoking rules.

Disparities in modern health service utilization across socio-demographic and economic inequalities among households in Gida Ayana district, Oromia Regional state, Ethiopia: a community-based cross-sectional study.

BACKGROUND: Health care disparities (HCD) occur across a broad range of dimensions and achieving equity in health care is a strenuous task. To overcome the disparities, countries worldwide have started implementing varies policies. HCD remains a challenge in the health care system of Ethiopia. Hence, the study aimed to estimate the disparities in health care utilization (HCU) among households. METHODS: A community-based cross-sectional study was conducted from February 01 to April 30, 2022, among households in Gida Ayana District, Ethiopia. A single population proportion formula was used to determine the 393sample size, and participants were selected using systematic sampling. Data was entered into Epi-data 4.6 and exported to SPSS 25 for analysis. Descriptive analysis and binary and multivariable logistic regressions were performed. RESULTS: Of the 356 households that participated in the study, 321 (90.2%) of them reported at least one member of their family perceived morbidity in the last six months. The overall level of HCU determined was 207(64.5%), 95% confidence interval (CI),59.0-69.7%. Urban residents (AOR = 3.68, 95% CI = 1.94-6.97), attending secondary school and above (AOR = 2.79, CI = 1.27-5.98), rich (AOR = 2.47, CI = 1.03-5.92), small families (AOR = 2.83, CI = 1.26-6.55), and insured (AOR = 4.27, CI = 2.36-7.71) significantly contributed to HCD. CONCLUSIONS: Households' overall level of HCU for perceived morbidity was moderate. However, significant disparities were observed in HCU across place of residence, wealth status, level of education, family size, and health insurance. Hence, strengthening the strategy of financial protection by implementing health insurance that focuses on the socio-demographic and economic status of households is recommended to reduce the disparities.

COVID-19 Pandemic and Health and Social Inequalities Worldwide: Impact and Response Measures in Greece.

OBJECTIVES: The pandemic has exacerbated pre-existing health and socioeconomic inequalities around the globe. In order to mitigate the effects of extreme isolation and containment measures, governments have taken steps to protect the health, the economy, employment, and socially vulnerable groups. The health crisis should be treated as a pretext in order to ensure universal access to health and socioeconomics.The aim of this review was the presentation of the way the pandemic contributed to the worldwide deterioration of health inequities affecting in parallel the social protection in the health, economic and educational sector along with other factors, the effects and the measures taken, in order to face the consequences of a pandemic on the social protection in Greece in comparison with other countries of Europe. METHODS: A cross-sectional bibliographic study was undertaken using keywords and phrases such as "COVID-19," "Health inequities," "Social protection," and "Social identifiers." The search was done through the search engines google scholar, PubMed, Health link, and Elsevier using either the Greek or English language. The total number of evaluated read-used articles was 30. Inclusion criteria were free full-text meta-analyses, reviews, and systematic reviews. RESULTS: The socially disadvantaged groups in the United States were found to have a lower life expectancy and higher morbidity rates than privileged social groups, as economic, health, and sociocultural precariousness are major causes of death. Patients with underlying diseases are vulnerable groups and increase the risk of coronavirus infection and quite often lead to loss of life due to complications of the disease. Greece is ranked in the 4th worst position with 61.10% in employment in all European Union (EU) countries. There is a significant increase in deaths with a percentage change from 2018 to date of 17.50%. It also holds the 3rd worst position among EU countries in the field of unemployment, while women hold the 2nd worst with a rate of 13.50%. Overworked and overindebted households due to extreme measures due to the pandemic (reduction of working time, quarantine) led to unemployment, loss of income, poverty, widening social inequalities, and deteriorating care for people with disabilities. Children due to the closure of schools and the loss of school meals are led to food insecurity. The pandemic also left many children orphaned after the death of their parents by COVID-19, with psychosocial problems exacerbated by school closures. CONCLUSIONS: The pandemic has exacerbated long-standing health and socioeconomic inequalities, stressing to governments the need to adopt political strategies that will help address them. Measures have been taken in Greece for labor protection, and unemployment benefits, such as the two-month extension of the subsidy period for the unemployed and the long-term unemployed. Minimum insurance days have also been reduced so that citizens employed in tourism, catering, and other seasonal occupations can receive unemployment benefits.

Inequality in socially permissible consumption.

Lower-income individuals are frequently criticized for their consumption decisions; this research examines why. Eleven preregistered studies document systematic differences in permissible consumption-interpersonal judgments about what is acceptable (or not) for others to consume-such that lower-income individuals' decisions are subject to more negative and restrictive evaluations. Indeed, the same consumption decisions may be deemed less permissible for a lower-income individual than for an individual with higher or unknown income (studies 1A and 1B), even when purchased with windfall funds. This gap persists among participants from a large, nationally representative sample (study 2) and when testing a broad array of "everyday" consumption items (study 3). Additional studies investigate why: The same items are often perceived as less necessary for lower- (versus higher-) income individuals (studies 4 and 5). Combining both permissibility and perceived necessity, additional studies (studies 6 and 7) demonstrate a causal link between the two constructs: A purchase decision will be deemed permissible (or not) to the extent that it is perceived as necessary (or not). However, because-for lower-income individuals-fewer items are perceived as necessary, fewer are therefore socially permissible to consume. This finding not only exposes a fraught double standard, but also portends consequential behavioral implications: People prefer to allocate strictly "necessary" items to lower-income recipients (study 8), even if such items are objectively and subjectively less valuable (studies 9A and 9B), which may result in an imbalanced and inefficient provision of resources to the poor.

Economic inequality and carbon inequality: Multi-evidence from China's cities and counties.

Despite economic inequality (EI) and carbon inequality (CI) are both core targets for sustainable development goals (SDGs), the current studies on EI and CI still lacks in-depth investigation, hindering to formulate policy towards better balancing social welfare improvement and carbon emission reduction. To address the gap above, the study comprehensively analyzed on the trends and drivers of EI and CI in a case of 262 cities over 2002-2019 and 1434 counties over 2005-2017 in China at individual level and aggregate level, respectively. Further, we explored the decoupling relationship between EI and CI and corresponding driver using an inequality-based decoupling decomposition model we proposed. We found that almost all cities, counties and corresponding sub-groups presented overall declining trends for EI and CI except for county groups over the period, where the within difference was the main driver. Further, the change of population proportion and the regional ranking have promoted the reduction of EI and CI at city- and county-levels. Decoupling analysis implied that the main decoupling state between EI and CI was weak negative decoupling for cities and counties, where the changes in regional ranking and per capita carbon emission were the negative and positive drivers, respectively. The study highlights the importance of reducing EI and CI simultaneously for policy implication.

Economic inequalities in decayed, missing, and filled first permanent molars among 8-12 years old Iranian schoolchildren.

BACKGROUND: First permanent molars (FPM) play an important role in the masticatory function and oral health. This study aimed to assess the economic inequalities of FPM health indices among schoolchildren in the northeast of Iran. METHODS: A total of 4051 children aged 8-12 years old were included in the analyses of this cross-sectional study in 2015. Economic status was measured using the principal component analysis on home assets. Concentration index (C) was used to measure economic inequality in FPM health indices, and its contributing factors determined by Wagstaff decomposition technique. RESULTS: The prevalence of having decayed, missing, and filled FPMs among children was 40.9% (95% CI: 38.8-43.0), 1.2% (95% CI: 0.8-1.6%), and 7.8% (95% CI: 6.7-8.9%), respectively. Missing FPM was generally more concentrated among low-economic children (C=-0.158), whereas, filled FPM was more concentrated on high-economic children (C = 0.223). Economic status, mother education, having a housekeeper mother, and overweight/obesity, contributed to the measured inequality in missing FPM by 98.7%, 97.5%, 64.4%, and 11.2%, respectively. Furthermore, 88.9%, 24.1%, 14.5%, and 13.2% of filled FPM inequality was attributable to children's economic status, father education, residence in rural areas, and age, respectively. CONCLUSION: There is a significant economic inequality in both missing and filled FPM. This inequality can be attributed to the economic status of individuals. To reduce FPM extraction, it is important to target low-income and rural children and provide them with FPM restoration services. Additionally, it is necessary to provide training to less-educated parents and housekeeper mothers to address the observed inequalities.

Stratification of poverty risk: The importance of social class in four European countries.

Social class structures life chances and exposure to socioeconomic risk, but the extent to which this is still the case is subject to debate. While some assert a relevant middle-class squeeze and consequent polarisation, others argue for the disappearance of social class and a 'democratisation' of social and economic risk for all segments of postmodern society. We focused on relative poverty to interrogate the extent to which occupational class still matters and whether traditionally 'safe' middle-class occupations have lost their capacity for sheltering people from socioeconomic risk. The class-based stratification of poverty risk suggests pronounced structural inequalities between social groups, given its consequences in terms of deprived living standards and the reproduction of disadvantage. We used the longitudinal component of EU-SILC data (2004-2015) to analyse four European countries: Italy, Spain, France and the United Kingdom. We developed logistic models of poverty risk and compared class-specific average marginal effects obtained under a seemingly unrelated estimation framework. We documented persistence of class-based stratification of poverty risk with some indication of polarisation. Over time, upper-class occupations preserved their secure position, middle-class occupations showed a slight increase in poverty risk and working-classes showed the greatest increase in poverty risk. Contextual heterogeneity exists mainly in the levels while patterns are relatively similar. The particularly high-risk exposure of less advantaged classes in Southern Europe can be attributed to the prevalence of single earner households.

Effect of economic inequality on generosity: A social norm perspective.

Economic inequality has been found to reduce individuals' generosity in western contexts. However, whether this effect is cross-culturally consistent and its internal mechanism remain unclear, as well as how to mitigate this impact. Hence, we explored whether and why economic inequality may erode generosity in a sample of Chinese adults from the social norm perspective and introduced the equal allocation norm to mitigate this effect. Four online studies were conducted: two were correlational (Study 1: n = 300; Study 2: n = 568) and two were experimental (Study 3: n = 289; Study 4: n = 500). Results showed that economic inequality predicted less generosity in the dictator game, and perceived unequal allocation norm accounted for this effect. Moreover, introducing the equal allocation norm could buffer this negative effect. Findings suggest economic inequality impairs generosity, and making the equal allocation norm more salient may guide people to act more generously.

On the measurement of healthy lifespan inequality.

BACKGROUND: Current measures to monitor population health include indicators of (i) average length-of-life (life expectancy), (ii) average length-of-life spent in good health (health expectancy), and (iii) variability in length-of-life (lifespan inequality). What is lacking is an indicator measuring the extent to which healthy lifespans are unequally distributed across individuals (the so-called 'healthy lifespan inequality' indicators). METHODS: We combine information on age-specific survival with the prevalence of functional limitation or disability in Spain (2014-2017) by sex and level of education to estimate age-at-disability onset distributions. Age-, sex- and education-specific prevalence rates of adult individuals' daily activities limitations were based on the GALI index derived from Spanish National Health Surveys held in 2014 and 2017. We measured inequality using the Gini index. RESULTS: In contemporary Spain, education differences in health expectancy are substantial and greatly exceed differences in life expectancy. The female advantage in life expectancy disappears when considering health expectancy indicators, both overall and across education groups. The highly educated exhibit lower levels of lifespan inequality, and lifespan inequality is systematically higher among men. Our new healthy lifespan inequality indicators suggest that the variability in the ages at which physical daily activity limitations start are substantially larger than the variability in the ages at which individuals die. Healthy lifespan inequality tends to decrease with increasing educational attainment, both for women and for men. The variability in ages at which physical limitations start is slightly higher for women than for men. CONCLUSIONS: The suggested indicators uncover new layers of health inequality that are not traceable with currently existing approaches. Low-educated individuals tend to not only die earlier and spend a shorter portion of their lives in good health than their highly educated counterparts, but also face greater variation in the eventual time of death and in the age at which they cease enjoying good health-a multiple burden of inequality that should be taken into consideration when evaluating the performance of public health systems and in the elaboration of realistic working-life extension plans and the design of equitable pension reforms.

Physics-inspired analysis of the two-class income distribution in the USA in 1983-2018.

The first part of this paper is a brief survey of the approaches to economic inequality based on ideas from statistical physics and kinetic theory. These include the Boltzmann kinetic equation, the time-reversal symmetry, the ergodicity hypothesis, entropy maximization and the Fokker-Planck equation. The origins of the exponential Boltzmann-Gibbs distribution and the Pareto power law are discussed in relation to additive and multiplicative stochastic processes. The second part of the paper analyses income distribution data in the USA for the time period 1983-2018 using a two-class decomposition. We present overwhelming evidence that the lower class (more than 90% of the population) is described by the exponential distribution, whereas the upper class (about 4% of the population in 2018) by the power law. We show that the significant growth of inequality during this time period is due to the sharp increase in the upper-class income share, whereas relative inequality within the lower class remains constant. We speculate that the expansion of the upper-class population and income shares may be due to increasing digitization and non-locality of the economy in the last 40 years. This article is part of the theme issue 'Kinetic exchange models of societies and economies'.