Now showing 1 - 10 of 18
  • Publication
    From the cradle to the labor market? The effect of birth weight on adult outcomes
    (University College Dublin, Geary Institute, 2007-06) ; ;
    Lower birth weight babies have worse outcomes, both short-run in terms of one-year mortality rates and longer run in terms of educational attainment and earnings. However, recent research has called into question whether birth weight itself is important or whether it simply reflects other hard-to-measure characteristics. By applying within twin techniques using an unusually rich dataset from Norway, we examine the effects of birth weight on both short-run and long-run outcomes for the same cohorts. We find that birth weight does matter; despite short-run twin fixed effects estimates that are much smaller than OLS estimates, the effects on longer-run outcomes such as adult height, IQ, earnings, and education are significant and similar in magnitude to OLS estimates.
      648
  • Publication
    Poor Little Rich Kids? - The Determinants of the Intergenerational Transmission of Wealth
    (University College Dublin. School of Economics, 2015-07) ; ; ;
    Wealth is highly correlated between parents and their children; however, little is known about the extent to which these relationships are genetic or determined by environmental factors. We use administrative data on the net wealth of a large sample of Swedish adoptees merged with similar information for their biological and adoptive parents. Comparing the relationship between the wealth of adopted and biological parents and that of the adopted child, we find that, even prior to any inheritance, there is a substantial role for environment and a much smaller role for genetics. We also examine the role played by bequests and find that, when they are taken into account, the role of adoptive parental wealth becomes much stronger. Our findings suggest that wealth transmission is not primarily because children from wealthier families are inherently more talented or more able but that, even in relatively egalitarian Sweden, wealth begets wealth.
      474
  • Publication
    The more the merrier? The effect of family composition on children's education
    (Institute for the Study of Labor, 2004-08) ; ;
    Among the perceived inputs in the “production” of child quality is family size; there is an extensive theoretical literature that postulates a tradeoff between child quantity and quality within a family. However, there is little causal evidence that speaks to this theory. Our analysis is able to overcome many limitations of the previous literature by using a rich dataset that contains information on the entire population of Norway over an extended period of time and allows us to match adult children to their parents and siblings. In addition, we use exogenous variation in family size induced by the birth of twins to isolate causation. Like most previous studies, we find a negative correlation between family size and children’s educational attainment. However, when we include indicators for birth order, the effect of family size becomes negligible. This finding is robust to the use of twin births as an instrument for family size. In addition, we find that birth order has a significant and large effect on children’s education; children born later in the family obtain less education. These findings suggest the need to revisit economic models of fertility and child “production”, focusing not only on differences across families but differences within families as well.
      274
  • Publication
    Why the apple doesn't fall far : understanding intergenerational transmission of human capital
    (Institute for the Study of Labor, 2003-10) ; ;
    Parents with higher education levels have children with higher education levels. However, is this because parental education actually changes the outcomes of children, suggesting an important spillover of education policies, or is it merely that more able individuals who have higher education also have more able children? This paper proposes to answer this question by using a unique dataset from Norway. Using the reform of the education system that was implemented in different municipalities at different times in the 1960s as an instrument for parental education, we find little evidence of a causal relationship between parents’ education and children’s education, despite significant OLS relationships. We find 2SLS estimates that are consistently lower than the OLS estimates with the only statistically significant effect being a positive relationship between mother's education and son's education. These findings suggest that the high correlations between parents’ and children’s education are due primarily to family characteristics and inherited ability and not education spillovers.
      479
  • Publication
    On The Origins of Risk-Taking
    (University College Dublin. School of Economics, 2015-06) ; ; ;
    Risk-taking behavior is highly correlated between parents and their children; however, little is known about the extent to which these relationships are genetic or determined by environmental factors. We use data on stock market participation of Swedish adoptees and relate this to the investment behavior of both their biological and adoptive parents. We find that stock market participation of parents increases that of children by about 34% and that both pre-birth and post-birth factors are important. However, once we condition on having positive financial wealth, we find that nurture has a much stronger influence on risk-taking by children, and the evidence of a relationship between stock-holding of biological parents and their adoptive children becomes very weak. We find similar results when we study the share of financial wealth that is invested in stocks. This suggests that a substantial proportion of risk-attitudes and behavior is environmentally determined.
      137
  • Publication
    Recent developments in intergenerational mobility
    (University College Dublin. School of Economics, 2010-04) ;
      517
  • Publication
    The (Un)Importance of Inheritance
    (University College Dublin. School of Economics, 2022-01) ; ; ;
    Transfers from parents—either in the form of gifts or inheritances—have received much attention as a source of inequality. This paper uses a 19-year panel of administrative data for the population of Norway to examine the share of the Total Inflows available to an individual (defined as the capitalized sum of net labor income, government transfers, and gifts and inheritances received over the period) accounted for by capitalized gifts and inheritances. Perhaps surprisingly, we find that gifts and inheritances represent a small share of Total Inflows; this is true across the distribution of Total Inflows, as well as at all levels of net wealth at a point in time. Gifts and inheritances are only an important source of income flows among those who have very wealthy parents. Additionally, gifts and inheritances have very little effect on the distribution of Total Inflows – when we do a counterfactual Total Inflows distribution with zero gifts and inheritances, it is not much different from the actual distribution. Our findings suggest that inheritance taxes may do little to mitigate the extreme wealth inequality in society.
      71
  • Publication
    Too young to leave the nest? The effects of school starting age
    (Institute for the Study of Labor, 2008-04) ; ;
    Does it matter when a child starts school? While the popular press seems to suggest it does, there is limited evidence of a long-run effect of school starting age on student outcomes. This paper uses data on the population of Norway to examine the role of school starting age on longer-run outcomes such as IQ scores at age 18, educational attainment, teenage pregnancy, and earnings. Unlike much of the recent literature, we are able to separate school starting age from test age effects using scores from IQ tests taken outside of school, at the time of military enrolment, and measured when students are around age 18. Importantly, there is variation in the mapping between year and month of birth and the year the test is taken, allowing us to distinguish the effects of school starting age from pure age effects. We find evidence for a small positive effect of starting school younger on IQ scores measured at age 18. In contrast, we find evidence of much larger positive effects of age at test, and these results are very robust. We also find that starting school younger has a significant positive effect on the probability of teenage pregnancy, but has little effect on educational attainment of boys or girls. There appears to be a short-run positive effect on earnings of beginning school at a younger age; however, this effect has essentially disappeared by age 30. This pattern is consistent with the idea that starting school later reduces potential labor market experience at a given age for a given level of education; however, this becomes less important as individuals age.
      484
  • Publication
    Does grief transfer across generations? In-utero deaths and child outcomes
    (University College Dublin. School of Economics, 2014-03) ; ;
    While much is now known about the effects of physical health shocks to pregnant women on the outcomes of the in-utero child, we know little about the effects of psychological stresses. One clear form of stress to the mother comes from the death of a parent. We examine the effects of the death of the mother's parent during pregnancy on both the short-run and the long-run outcomes of the infant. Our primary specification involves using mother fixed effects— comparing the outcomes of two children with the same mother but where a parent of the mother died during one of the pregnancies—augmented with a control for whether there is a death around the time of the pregnancy in order to isolate true causal effects of a bereavement during pregnancy. We find small negative effects on birth outcomes, and these effects are bigger for boys than for girls. The effects on birth outcomes seems to be driven by deaths due to cardiovascular causes suggesting that sudden deaths are more difficult to deal with. However, we find no evidence of adverse effects on adult outcomes. The results are robust to alternative specifications.
      282
  • Publication
    Small family, smart family? Family size and the IQ scores of young men
    (Institute for the Study of Labor, 2007-08) ; ;
    How do families influence the ability of children? Cognitive skills have been shown to be a strong predictor of educational attainment and future labor market success; as a result, understanding the determinants of cognitive skills can lead to a better understanding of children’s long run outcomes. This paper uses a large dataset on the male population of Norway and focuses on one family characteristic: the effect of family size on IQ. Because of the endogeneity of family size, we instrument for family size using twin births and sex composition. IV estimates using sex composition as an instrument show no negative effect of family size; however, IV estimates using twins imply that family size has a negative effect on IQ. Our results suggest that effect of family size depends on the type of family size intervention. We conclude that there are no important negative effects of expected increases in family size on IQ but that unexpected shocks to family size resulting from twin births have negative effects on the IQ of existing children.
      320