The causal effect of income on health: evidence from German reunification

We investigate whether there was a causal effect of income changes on the health satisfaction of East and West Germans in the years following reunification. Our data source is the German Socio-Economic Panel (GSOEP) between 1984 and 2002, and we fit a recently proposed fixed-effects ordinal estimator to our health measures and use a causal decomposition technique to account for panel attrition. We find evidence of a significant positive effect of income changes on health satisfaction, but the quantitative size of this effect is small. This is the case with respect to current income and a measure of 'permanent' income.     

Health, schooling and lifestyle among young adults in Finland

This was a longitudinal, general population study based on a Northern Finland 1966 Birth Cohort, using a structural equation approach to estimate the health production function and health input functions for four lifestyle variables (smoking, alcohol consumption, exercise and unhealthy diet) for males and females. In particular, we examined the productive and allocative effects of education on health. We used 15D, a generic measure of health-related quality of life, as a single index score measure but we also estimated models for some of its dimensions. Among the males, the important factors impacting on health were education and all the four lifestyle factors, as well as some exogenous variables at 31 years and variables describing parents' background, and health and behaviour at 14 years. An increase of five years in schooling increased the health score by 0.008, of which about 50% was due to direct effect and 50% due to indirect effects. Among the females, education does not impact on health, but health was affected by the use of alcohol, exercise and diet, but not by smoking.Our results indicate that policy options that increase education among men will increase their health indirectly via healthier lifestyles. However, since the total effect was rather modest and the direct effect insignificant, an increase of schooling is not a cost-effective way to increase health given the present high educational level of Finland. The young adults' and particularly women's internationally high educational status in Finland might be a reason why we find only a modest effect of schooling on health and the non-existence of such effects among women.     

Secondary school fees and the causal effect of schooling on health behavior

Using German census data, we estimate the causal effect of education on smoking and overweight/obesity using the abolition of secondary school fees as instrumental variable. The West German federal states enacted this reform at different dates after World War II, generating exogenous variation in the access to secondary education. While we find a strong association between schooling and health behaviors using OLS, we do not find support for the notion that education causes better health behavior. Copyright © 2009 John Wiley & Sons, Ltd.     

The effect of parental education on child health: Quasi‐experimental evidence from a reduction in the length of primary schooling in Egypt

This paper examines the impact of parental education on child health using a reduction in the length of primary schooling in Egypt. We use a fuzzy regression discontinuity design to compare the health outcomes of children whose parents were exposed to different schooling requirements because they were born either side of a threshold date. Using data from the Demographic and Health Survey (1992–2014), we find no effect of maternal education on child mortality or nutritional status. There is some evidence, although not entirely robust, that father's education reduces the likelihood of child stunting. We find, however, that father's education has no impact on child mortality or other measures of nutritional status. We provide suggestive evidence that, given the low levels of parental education in Egypt accompanied with the inferior quality of primary schooling, education has little effect on intermediate outcomes—literacy and utilization of antenatal care—that may improve the health of offspring.     

The causal effect of education on chronic health conditions in the UK

We study the causal impact of education on chronic health conditions by exploitng two UK education policy reforms. The first reform raised the minimum school leaving age in 1972 and affected the lower end of the educational attainment distribution. The second reform is a combination of several policy changes that affected the broader educational attainment distribution in the early 1990s. Results are consistent across both reforms: an extra year of schooling has no statistically identifiable impact on the prevalence of most chronic health conditions. The exception is that both reforms led to a statistically significant reduction in the probability of having diabetes, and this result is robust across model specifications. However, even with the largest survey samples available in the UK, we are unable to statistically rule out moderate size educational effects for many of the other health conditions, although we generally find considerably smaller effects than OLS associations suggest.     

The Causal Effect of Education on Health: What is the Role of Health Behaviors?

We investigate the causal effect of education on health and the part of it that is attributable to health behaviors by distinguishing between short‐run and long‐run mediating effects: whereas, in the former, only behaviors in the immediate past are taken into account, in the latter, we consider the entire history of behaviors. We use two identification strategies: instrumental variables based on compulsory schooling reforms and a combined aggregation, differencing, and selection on an observables technique to address the endogeneity of both education and behaviors in the health production function. Using panel data for European countries, we find that education has a protective effect for European men and women aged 50+. We find that the mediating effects of health behaviors—measured by smoking, drinking, exercising, and the body mass index—account in the short run for around a quarter and in the long run for around a third of the entire effect of education on health. Copyright © 2015 John Wiley & Sons, Ltd.     

Does education reduce teen fertility? Evidence from compulsory schooling laws

While less-educated women are more likely to give birth as teenagers, there is scant evidence the relationship is causal. We investigate this possibility using variation in compulsory schooling laws (CSLs) to identify the impact of formal education on teen fertility at specific ages for a large sample of women drawn from multiple waves of the Canadian Census. We find large negative impacts of education on births for young women aged seventeen and eighteen, but less systematic evidence of an effect after these ages. While our findings are consistent with an “incarceration effect”, where school enrollment deters fertility in a contemporaneous manner, we cannot rule out longer-run effects of education on fertility.     

The effect of relationship status on health with dynamic health and persistent relationships

The dynamic evolution of health and persistent relationship status pose econometric challenges to disentangling the causal effect of relationships on health from the selection effect of health on relationship choice. Using a new econometric strategy we find that marriage is not universally better for health. Rather, cohabitation benefits the health of men and women over 45, being never married is no worse for health, and only divorce marginally harms the health of younger men. We find strong evidence that unobservable health-related factors can confound estimates. Our method can be applied to other research questions with dynamic dependent and multivariate endogenous variables.     

Does compulsory education lower mortality?

Recent studies have claimed to show a significant causal impact of education on health status. Their empirical strategy usually relied on changes in compulsory schooling laws. Using a French longitudinal dataset, we focus on the effect of school leaving age on mortality at later ages. The two identifying shocks are the Zay and Berthoin reforms, which respectively raised the minimum school leaving age to 14 and 16 years. We implement a non-parametric regression discontinuity design, comparing cohorts born immediately before or after the reforms, and a parametric two-stage approach using information from a larger part of our sample. None of these approaches reveals a significant causality of education on health. Despite the fact that these reforms increased education levels, and that subsequent declines in mortality are observed, none of these declines appears to be significant. We conclude with a discussion on possible limitations of these two reforms as identifying devices.     

Schooling, cognitive ability and health

A large literature documents a strong correlation between health and educational outcomes. In this paper we investigate the role of cognitive ability in the health-education nexus. Using NLSY data, we show that one standard deviation increase in cognitive ability is associated with roughly the same increase in health as two years of schooling and that cognitive ability accounts for roughly one quarter of the association between schooling and health. Both schooling and ability are strongly associated with health at low levels but less related or unrelated at high levels. Estimates treating schooling as endogenous to health suggest that much of the correlation between schooling and health is attributable to unobserved heterogeneity; the causal effect of schooling on health is large only for respondents with low levels of schooling and low cognitive ability. An implication is that policies which increase schooling will only increase health to the extent that they increase the education of poorly-educated individuals. Subsidies to college education, for example, are unlikely to increase population health.