We examine friendships and study partnerships among university students over several years. At the aggregate level, connections increase over time, but homophily on gender and ethnicity is relatively constant across time, university residences, and different network layers. At the individual...

Descriptive norms - the behavior of other individuals in one's reference group - play a key role in shaping individual decisions. When characterizing the behavior of others, a standard approach in the literature is to focus on average behavior. In this paper, we argue both theoretically and...

Using longitudinal data from the Italian National Institute for the Evaluation of the Education System (INVALSI), this paper investigates whether the ability of classmates affects the educational attainment of immigrant students. We focus not only on the average quality of peers in the class,...

Administrative burdens may deepen inequality by creating costly experiences for vulnerable groups. Research to date typically focuses on how burdens affect decisions in specific policy contexts, thus little is known about everyday experiences of burdens and their distribution in society. This is...

Despite the prevalence of school tracking, evidence on whether it improves student success is mixed. This paper studies how tracking within high school impacts high-achieving students' short- and longer-term academic outcomes. Our setting is a large and selective Chinese high school, where...

We exploit the randomized evaluation of a remedying education intervention that improved the reading skills of low-performing third grade students in Colombia, to study whether providing educational support to low-achieving students affects the academic performance of their higher-achieving...

This paper examines peer effects on students' gender norm perceptions and skills formation. I use a Uruguayan nationally representative survey of 9th grade students and exploit the quasi-random variation in the proportion of female peers across classes within schools for causal identification....

In recent years there has been a plethora of empirical papers by economists concerning the effects of academic rank in school or college on subsequent outcomes of students. We review this recent literature, describing the difficult identification and measurement issues, the assumptions and...

This paper develops a model that allows for heterogenous contemporaneous peer effects among different types of agents who are endogenously selected into different peer groups. Using our framework, we characterize the reduced-form coefficient in the peer effect literature and show that it is a...

Administrative burdens may deepen inequality by creating costly experiences for vulnerable groups. Research to date typically focuses on how burdens affect decisions in specific policy contexts, thus little is known about everyday experiences of burdens and their distribution in society. This is...

This paper develops a model that allows for heterogenous contemporaneous peer effects among different types of agents who are endogenously selected into different peer groups. Using our framework, we characterize the reduced-form coefficient in the peer effect literature and show that it is a...

This article studies peer effects on the decision to enroll at university. To determine the social influence of peers, we use a measure encompassing the two major dimensions of social influence in the classroom: the ability and capacity of peers to exchange information about study options. This...

A number of studies show that there is a link between social comparison and high levels of household debt. However, the exact mechanisms behind this link are not yet well understood. In this paper, we disentangle two mechanisms by performing a lab experiment designed to study the effects of...

This paper documents that a shift from a selective to a comprehensive education system had implications for marriage market outcomes. By exploiting an education reform in Sweden, I show that comprehensive education reduced assortative mating both because children from poor backgrounds started to...

In recent years there has been a plethora of empirical papers by economists concerning the effects of academic rank in school or college on subsequent outcomes of students. We review this recent literature, describing the difficult identification and measurement issues, the assumptions and...

We study both endogenous and exogenous peer effects in worker productivity using an explicit network approach. We apply this method to data from an in-house call center of a multinational mobile network operator that include detailed information on individual performance. We find that a 10%...

We provide the first analysis of racial in-group bias in Type-I and Type-II errors. Using player-referee matched data from NBA games we show that there is no overall racial bias or in-group bias in foul calls made by referees. Similarly, there is no racial bias or in-group bias in Type-I errors...

Do the people around us influence our personality? To answer this question, we conduct an experiment with 543 university students who we randomly assign to study groups. Our results show that students become more similar to their peers along several dimensions. Students with more competitive...

Do the people around us influence our personality? To answer this question, we conduct an experiment with 543 university students who we randomly assign to study groups. Our results show that students become more similar to their peers along several dimensions. Students with more competitive...

We investigate the effects of the introduction of a population-wide Human Papillomavirus (HPV) vaccination program on the vaccine take-up of the targeted group of 15-year-old girls and their older sisters. For identification, we rely on a regression discontinuity design and high-quality Danish...

This paper studies the effect of multigrading-mixing children of different ages in the same classroom-on students' short- versus long-term academic achievement in Italy. We cope with the endogeneity of multigrading (and class size) through an instrumental variable identification strategy based...

We study the long-run effects of income inequality within adolescent peer compositions in schools. We propose a theoretical framework based on reference dependence where inequality in peer groups can generate aspiration gaps. Guided by predictions from this framework we find that an increase in...

Social networks are a key factor of success in life, but they are also strongly segmented on gender, ethnicity, and other demographic characteristics (Jackson, 2010). We present novel evidence on an understudied source of homophily, namely behavioral traits. Behavioral traits are important...

We use a lab-in-the-field experiment to explore the influence of parents and peers in shaping adolescents’ beliefs on whether they are better in male-typed fields (math) versus female-typed fields (literature). We find that thinking about parental recommendation affects students’ beliefs on...

Observability has been demonstrated to influence the adoption of pro-social behavior in a variety of contexts. This study implements a field experiment to examine the influence of observability in the context of a novel pro-social behavior: peer-to-peer solar. Peer-to-peer solar offers an...

Descriptive norms - the behavior of other individuals in one's reference group - play a key role in shaping individual decisions. When characterizing the behavior of others, a standard approach in the literature is to focus on average behavior. In this paper, we argue both theoretically and...

In the light of the recent literature on the intellectual history of inequality, this paper offers the first survey and a tentative classification of the Italian literature addressing issues related to social mobility, from late-19th century to the 'Economic Miracle' of the 1950s. During these...

This paper examines the educational spillover effects of migrant personality on the academic performance of local students, exploring the random assignment of students into Chinese middle school classrooms. We find that local students perform better in the presence of more conscientiousness and...