Research Fields: Economics and Inequality, Economics and Beliefs
CV
Google Scholar Profile
jonathan.norris@strath.ac.uk
Working Papers
Income Inequality and Peer Effects in Education (with Marco Fongoni, Agnese Romiti, and Zhan Shi).
[ Abstract | Draft (updated 27/08/2024) | IZA Draft (previous version; different title) ]
We study the long-run effects of income inequality within peer compositions. An increase in the share of low-income peers within school-cohorts improves the educational outcomes of low-income students and negatively affects high-income students. We show this pattern is not likely explained by commonly observed mechanisms. We then propose a model based on reference-dependent preferences and social comparison that rationalizes our findings, highlighting the role of frustration or motivation depending on students’ relative income. We also provide evidence consistent with this mechanism. Finally, we show that better connections in school can help to avoid such unintended consequences of income inequality.
The aerial bombing of Cambodia and health in the very long-run (with Thi Tham Ta and Otto Lenhart).
[ Abstract | Draft ]
We study the long-run impacts of local area exposures to US bombing in Cambodia on health outcomes among those residing in these locations many years later. Our study is separate from those that focus on the impact of being exposed to bombings as a child; rather, we study how conflicts can map to health outcomes for future generations. Using a wide range of geo-coded data and a spatial regression discontinuity adapted to many boundaries, we find that the long-term health impacts of past bombings vary significantly by location, depending on whether the bombs still influence activities today. We find that in areas where pre-bombing soil was infertile, harder ground, and unexploded ordinance (UXO) is less likely, local area exposure to past bombing has positive effects on health, indicated by higher Height-for-age Z-scores, a decreased likelihood of being underweight or suffering from anemia. In contrast, fertile areas, softer ground, where bombs were more likely to fail and UXO remains a threat show either null or harmful effects. We then utilize numerous data sources to show that local economic development and improved access to health facilities are likely mechanisms explaining the positive effects in low UXO locations today. In regions free from the dangers of UXO, significant investments in economic activities and healthcare infrastructure have mitigated the negative effects of past bombing, even improving health outcomes post-conflict. However, in areas where UXO remains a threat, development has been hindered, and negative impacts persist. Our results overall offer an important lesson that while conflicts can be harmful, their impacts on future generations can be mitigated through investments in the post-conflict era, as long as remnants of war no longer remain.
The Motherhood Penalty: Gender Norms, Occupational Sorting, and Labour Supply (with Agnese Romiti and C'esarine Boinet)
[ Abstract | Draft ]
In this paper, we examine how pre-birth gender norms shape women's labor market trajectories and occupational choices around motherhood in the United Kingdom. Using data from the British Household Panel Survey, we first quantify the impact of gender norms on earnings and labor supply post-childbirth. Our results show that traditional mothers experience a 18-percentage-point (pp) higher motherhood penalty in earnings and a 20-pp lower motherhood penalty in hours worked compared to egalitarian mothers. Second, we investigate the role of pre-birth comparative advantage within couples, finding that this mechanism applies only to egalitarian parents.
Third, we examine the interaction between occupational characteristics, including their degree of family-friendliness, and pre-birth gender norms. We find that accounting for occupational sorting significantly reduces the average earnings penalty for both traditional and egalitarian mothers, driven entirely by hours worked for traditional mothers. In addition, we show that occupational sorting explains 80% of the short-run earnings penalty gap between traditional and egalitarian mothers and eliminates the difference in hours worked penalties entirely.
Thus, traditional women seem to sort pre-birth into occupations that facilitate a larger reduction in hours worked post-motherhood, which in turn have a substantial impact on their earnings trajectory.
Published Papers
The Long-Run Effects of Peers on Mental Health (with Lukas Kiessling), The Economic Journal 133, no. 649 (2023): 281-322.
[ Abstract | Draft | Published Link | Replication Package | Media ]
This paper studies how peers in school affect students' mental health. Guided by a theoretical framework, we find that increasing students’ relative ranks in their cohorts by one standard deviation improves their mental health by 6\% of a standard deviation conditional on own ability. These effects are more pronounced for low-ability students, persistent for at least 14 years, and carry over to economic long-run outcomes. Moreover, we document a strong asymmetry: Students who receive negative rather than positive shocks react more strongly. Our findings therefore provide evidence on how the school environment can have long-lasting consequences for the well-being of individuals.
Troubled in School: Does Maternal Involvement Matter for Adolescents (with Martijn van Hasselt), Accepted (2023), Journal of Population Economics.
[ Abstract | Draft | Published Link ]
We estimate the causal effect of mother's involvement on the amount of trouble an adolescent experiences in school. We use multiple measures of school trouble and factor analysis to construct a composite and then link this composite with noncognitive skills. Our measure of mother's involvement encompasses discussing school-related matters and providing help with school projects. Using an instrumental variable constructed from a suitably chosen peer group, our main finding is that an increase in maternal involvement leads to a significant decrease in school trouble. We find this result to be robust across a large number of sensitivity tests designed to account for possible selection effects, shocks at the peer group level, and further potential violations of the exclusion restriction. Additionally, we present evidence suggesting that the effect of maternal involvement may operate through its effect on adolescents' college aspirations, mental health, and the perception of parental warmth.
Peer Gender and Schooling: Evidence from Ethiopia (with Daniel Borbely) and Agnese Romiti), Accepted (2022), Journal of Human Capital.
[ Abstract | Draft | Published Link ]
This paper studies how classmate gender composition matters for school absences and test scores in a context characterized by strong social norms and scarce school resources. We base our results on a unique survey of students across classrooms and schools in Ethiopia, exploiting random assignment of students to classrooms. We find a strong asymmetry: while females benefit from exposure to more female classmates with reduced absenteeism and improvement on math test scores, males are unaffected. We further find that exposure to more female classmates improves motivation and participation in class, and in general, that the effects of classmate gender composition are consistent with social interaction effects.
The Skill Development of the Children of Immigrants (with Marie Hull), Economics of Education Review 78 (2020): 102036.
[ Abstract | Draft | Published Link ]
In this paper, we study the evolution of cognitive and noncognitive skills gaps for children of immigrants between kindergarten and 5th grade using two recent cohorts of elementary school students. We find some evidence that children of immigrants begin school with lower math scores than children of natives, but this gap disappears in later elementary school. For noncognitive skills, children of immigrants and children of natives score similarly in early elementary school, but a positive gap opens up in 2nd grade. We find that the growth in noncognitive skills is driven by disadvantaged immigrant students. We discuss potential explanations for the observed patterns of skill development as well as the implications of our results for the labor market prospects of children of immigrants.
Peers, Parents, and Attitudes about School, Journal of Human Capital 14, no. 2 (Summer 2020): 290-342.
[ Abstract | Draft | Published Link ]
Educational attitudes are linked to long-term educational success through motivating effort and greater attention to the future. This study focuses on the role of friends and of parents in the school grade cohort in shaping adolescent attitude development. First, I explore the effect of friends' attitudes on an adolescent's attitudes. Second, I ask whether parental investments and educational expectations in the adolescent's school cohort can moderate the influence of friends on attitudes. I find that adolescents’ attitudes about school respond to friends’ attitudes and that parental educational expectations within a cohort can moderate the influence of friends on attitudes.
Identity Economics: Social Influence and Skill Development, Journal of Economic Surveys 33, no. 5 (2019): 1389-1408.
[ Abstract | Draft | Published Link ]
Within the economic literature, studies in identity economics, peer effects, and skill development have all suggested that social influences have an important role in determining choices. In this review, I draw on lessons learned from the identity economics literature to examine implications from the peer effects and skill development literature. I focus on the role of social identity in generating social group effects from peers and what role identity may have in shaping the development of skills from broader environments, parents and peers during childhood and adolescence.
Work in Progress
Beliefs on Children’s Human Capital Accumulation and Mothers at Work (with Cesarine Boinet, Agnese Romiti, and Zhan Shi)
The Value of Political Connection: Evidence from an Anti-Corruption Campaign in China (with Quoc-Anh Do and Fei Xu)
Asymmetries in Intensity and Persistence of Reciprocity in Labour Markets (with Marco Fongoni, Alex Dickson).
Dustbin Papers
Marijuana Legalization and Mental Health (with Daniel Borbely, Otto Lenhart, and Agnese Romiti)
[ Why is this retired? | IZA Draft ]
The analysis of the medical and recreational marijuana effects on mental health are complicated by two points. One, there are effectively two treatments when they occur, a prior medical marijuana policy (MMLs) and then a recreational marijuana policy (RMLs). The RML policies alway follow in states with existing MMLs. There are approaches in the literature to deal with this, but in our view without more data the reliability here is dubious, at least in the time frame we were studying.
Second, the implementation of RMLs for most of the cases in our panel happens to occur during a period that the trends in mental health change drastically. This is something, as far as we are aware, that no one has pointed out in terms of how this could complicate the estimation of RML effects. Why could it complicate estimation? While this change in trend is happening across the US, for a common trends assumption to hold in our setting would require that this change happens exactly the same across all treated and control comparisons. We find this hard to believe once looking deeply enough at just how drastic the mental health trends change starting from around 2013 or 2014. While referees had other valuable concerns about the paper, this was not pointed out. Nevertheless, in our estimation, pushing forward would not be useful to the literature.
A potential idea, is to look carefully at the change in mental health trends happening across the US during the 2010s and use this to assess clearly the difficulty for estimating RML effects. Cast against the backdrop of MML effects the picture becomes messy. In our view, this creates a circumstance that is difficult to effectively estimate effects in a believable way. How far these concerns extend to other settings interested in RML effects is unclear.