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Jason M. Fletcher
University of Wisconsin-Madison
187Publications
35H-index
4,176Citations
Publications 191
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#1Zijie Zhao (UW: University of Wisconsin-Madison)
#2Yanyao Yi (UW: University of Wisconsin-Madison)
Last.Qiongshi Lu (UW: University of Wisconsin-Madison)H-Index: 13
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Polygenic risk scores (PRSs) have wide applications in human genetics research. Notably, most PRS models include tuning parameters which improve predictive performance when properly selected. However, existing model-tuning methods require validation data that is independent with both training and testing samples. These data rarely exist in practice, creating a significant gap between PRS methodology and applications. Here, we introduce PUMAS, a novel method to fine-tune PRS models using summary ...
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Nascent research suggests intergenerational health mobility may be relatively high and non-genetic factors may make room for policy intervention. This project broadens this direction by considering heterogeneous intergenerational health mobility in spatial and contextual patterns. With 14,797 parent-child pairs from a school-based representative panel survey of adolescents (Add Health), this study finds large spatial variation in intergenerational health mobility in the United States. On average...
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#1Jason M. FletcherH-Index: 35
#2Jin-Ho KimH-Index: 26
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#1Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
This paper examines the extent to which growing up in a socially mobile environment might decouple genetic endowments related to educational attainment with actual attainments. Many models of intergenerational transmission of advantage contain both a transmission channel through endowments (i.e. genetics) from parents to children as well as from parental investments and 9luck9. Indeed, many scholars consider the intergenerational links due to the transmission of genetically based advantage to pl...
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#1Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
This paper explores the importance of adolescent environments as a key determinant of hope and optimism. Data were taken from the prospective, nationally representative National Longitudinal Study of Adolescent to Adult Health to calculate correlations in hope and optimism among individuals who attended the same secondary school. These correlations generate upper-bound estimates of the influence of adolescent environments and suggest relatively modest contributions, accounting for 1–3% of popula...
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In this paper, we estimate the impacts of abortion clinic closures on access to clinics in terms of distance and congestion, abortion rates, and birth rates. Legislation regulating abortion providers enacted in Wisconsin in 2011-2013 ultimately led to the closure of two of five abortion clinics in Wisconsin, increasing the average distance to the nearest clinic to 55 miles and distance to some counties to over 100 miles. We use a difference-in-differences design to estimate the effect of change ...
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#1Jessica Polos (UW: University of Wisconsin-Madison)
#2Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
The prevalence of inflammatory child health conditions—such as asthma, eczema, and food allergy—and their associated costs have increased rapidly over the last 30 years. While environmental factors...
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#1Kiersten L. Strombotne (AIR: American Institutes for Research)H-Index: 5
#2Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
Last.Mark Schlesinger (Yale University)H-Index: 37
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Abstract This study investigates whether peer obesity is a driver of individual weight changes in public school children and whether the impact of peer effects changes as children age. Quantifying peer effects is important for understanding the social determinants of obesity and for planning effective school wellness policies. However, the extant empirical research on peer effects is limited due to difficulties in separating causal influences from confounding factors. This study overcomes some o...
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#1Ben Domingue (Stanford University)H-Index: 19
#2Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
The bio-demographic literature has begun to use genome wide summary scores (polygenic scores) to predict a broad set of demographic and socioeconomic outcomes to understand the importance of genetics as well as potential life course mechanisms. However, a largely unacknowledged issue with these studies is that parental genetics impact both child environments and child genetics, leaving the effects of polygenic scores difficult to interpret. This paper uses multi-generational data that collected ...
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#1Jason M. Fletcher (UW: University of Wisconsin-Madison)H-Index: 35
A growing body of evidence suggests large increases in criminal behavior and mortality coinciding with a young adult's 21st birthday, when alcohol consumption becomes legal. The policy implications from these findings have focused on the need to reduce drinking among young people, potentially by enforcing stricter alcohol controls. However, mortality and arrests are relatively infrequent outcomes and relatively less is known about the intermediate and more prevalent consequences of legal access ...
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