Compensation or Reinforcement? The Stratification of Parental Responses to Children’s Early Ability

Theory and empirical evidence suggest that parents allocate their investments unequally among their children, thus inducing within-family inequality. We investigate whether parents reinforce or compensate for initial ability differences between their children as well as whether these parental responses vary by family socioeconomic status (SES). Using the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) and a twin fixed-effects approach to address unobserved heterogeneity, we find that parental responses to early ability differences between their children do vary by family SES. Contrary to prior findings, we find that advantaged parents provide more cognitive stimulation to higher-ability children, and lower-class parents do not respond to ability differences. No analogous stratification in parental responses to birth weight is found, suggesting that parents’ responses vary across domains of child endowments. The reinforcing responses to early ability by high-SES parents do not, however, led to increases in ability differences among children because parental responses have little effect on children’s later cognitive performance in this twin sample.     

Educational assortative mating and economic inequality: A comparative analysis of three Latin American countries

Educational assortative mating and economic inequality are likely to be endogenously determined, but very little research exists on their empirical association. Using census data and log-linear and log-multiplicative methods, I compare the patterns of educational assortative mating in Brazil, Chile, and Mexico, and explore the association between marital sorting and earnings inequality across countries. The analysis finds substantial variation in the strength of specific barriers to educational intermarriage between countries, and a close association between these barriers and the earnings gaps across educational categories within countries. This finding suggests an isomorphism between assortative mating and economic inequality. Furthermore, educational marital sorting is remarkably symmetric across gender in spite of the different resources that men and women bring to the union. This study highlights the limitations of using single aggregate measures of spousal educational resemblance (such as the correlation coefficient between spouses’ schooling) to capture variation in assortative mating and its relationship with socioeconomic inequality.     

Patterns of Racial and Educational Assortative Mating in Brazil

Exchange of racial for educational status has been documented for black/white marriages in the United States. Exchange may be an idiosyncratic feature of U.S. society, resulting from unusually strong racial boundaries historically developed there. We examine status exchange across racial lines in Brazil. In contrast to the United States, Brazil features greater fluidity of racial boundaries and a middle tier of “brown” individuals. If exchange is contingent on strong racial boundaries, it should be weak or non-existent in Brazilian society. Contrary to this expectation, we find strong evidence of status exchange. However, this pattern results from a generalized penalty for darkness, which induces a negative association between higher education and marrying darker spouses (“market exchange”) rather than from a direct trading of resources by partners (“dyadic exchange”). The substantive and methodological distinction between market and dyadic exchange helps clarify and integrate prior findings in the status exchange literature.     

Early-Life Circumstances and Their Effects Over the Life Course

Population Research and Policy Review - The idea that early-life circumstances shape people’s health, development, and well-being over the life course has gained renewed centrality in the...     

Parental wealth and children's outcomes over the life-course in Brazil: A propensity score matching analysis

Parental wealth – as distinct from income, education and other parental socioeconomic resources – may play a large role in children's socioeconomic outcomes, particularly in developing countries, characterized by economic volatility, a weak social safety net and limited access to credit. Using a propensity score matching approach, we examine the influence of parental wealth on adult children's schooling, school quality, occupational status, consumption level, and wealth holdings in Brazil. Findings suggest a substantial effect of parental wealth on all these outcomes, with a positive effect of even modest levels of wealth. The effect of parental wealth on occupational status is largely mediated by parental investment in more and better education for children. In contrast, the effect on children's consumption and wealth is largely unmediated by labor market resources and rewards, a pattern that is more pronounced for sons than for daughters. This suggests direct parental financial assistance. Sensitivity analysis indicates that hidden bias emerging from unobserved confounders should have to be unlikely large to question inference of a causal influence of high levels of parental wealth, although the influence of low levels of wealth may be more susceptible to hidden bias.     

The Effect of Maternal Stress on Birth Outcomes: Exploiting a Natural Experiment

A growing body of research highlights that in utero conditions are consequential for individual outcomes throughout the life cycle, but research assessing causal processes is scarce. This article examines the effect of one such condition-prenatal maternal stress-on birth weight, an early outcome shown to affect cognitive, educational, and socioeconomic attainment later in life. Exploiting a major earthquake as a source of acute stress and using a difference-in-difference methodology, I find that maternal exposure to stress results in a significant decline in birth weight and an increase in the proportion of low birth weight. This effect is focused on the first trimester of gestation, and it is mediated by reduced gestational age rather than by factors affecting the intrauterine growth of term infants. The findings highlight the relevance of understanding the early emergence of unequal outcomes and of investing in maternal well-being since the onset of pregnancy.     

Prenatal Exposure to an Acute Stressor and Children’s Cognitive Outcomes

Exposure to environmental stressors is highly prevalent and unequally distributed along socioeconomic lines and may have enduring negative consequences, even when experienced before birth. Yet, estimating the consequences of prenatal stress on children’s outcomes is complicated by the issue of confounding (i.e., unobserved factors correlated with stress exposure and with children’s outcomes). I combine a natural experiment—a strong earthquake in Chile—with a panel survey to capture the effect of prenatal exposure on acute stress and children’s cognitive ability. I find that stress exposure in early pregnancy has no effect on children’s cognition among middle-class families, but it has a strong negative influence among disadvantaged families. I then examine possible pathways accounting for the socioeconomic stratification in the effect of stress, including differential exposure across socioeconomic status, differential sensitivity, and parental responses. Findings suggest that the interaction between prenatal exposures and socioeconomic advantage provides a powerful mechanism for the intergenerational transmission of disadvantage.     

Pathways of change in social mobility: Industrialization,education and growing fluidity in Brazil

This paper explores the change in intergenerational class mobility over the last quarter-century in Brazil. Using repeated cross-sectional surveys between the early 1970s and the late 1990s and a counterfactual approach, we disentangle cohort from period interpretations of change, and examine the mechanisms driving change in fluidity among Brazilian men. We detect a substantial increase in social fluidity over time, which emerges from period transformation, rather than cohort replacement. This trend departs from industrialized nations, where growing fluidity has been found to be entirely driven by the replacement of older, more rigid cohorts by younger, more fluid ones, and to emerge from educational equalization and a “compositional effect”—educational expansion combined with a weaker intergenerational association among those with higher education. In contrast, in a context of rapid late industrialization, two mechanisms account for growing fluidity in Brazil: the decline in the “economic returns to schooling”, and the weakening of the direct influence of class origins on class destination, net of education. We discuss the implications of these patterns for the understanding of mobility dynamics in different national contexts.