Adolescence is an important developmental period when teens begin spending less time with their parents and more time with friends and others outside their households as they transition into adulthood. Using the 2017-2021 American Time Use Surveys and the 2012, 2013, and 2021 Well-being Modules,...

Adolescence is an important developmental period when teens begin spending less time with their parents and more time with friends and others outside their households as they transition into adulthood. Using the 2017-2021 American Time Use Surveys and the 2012, 2013, and 2021 Well-being Modules,...

There is substantial empirical evidence showing that peer effects matter in many activities. The workhorse model in empirical work on peer effects is the linear-in-means (LIM) model, whereby it is assumed that agents are linearly affected by the mean action of their peers. We develop a new...

We study whether interactions between individuals with different skills, expertise and perspectives influenced innovation in U.S. counties from 1850 to 1940. We introduce and validate a new measure of social interactional diversity based on the distribution of surnames: lower surname diversity...

This paper unpacks the effects of social networks on monthly county-level COVID19 vaccinations in the US. To parse out short-term community-level externalities where people help each other overcome immediate access barriers, from learning spillovers regarding vaccine efficacy that naturally take...

We study the effects of disruptive peers within disciplinary schools. When regular instructional schools send disruptive students away to disciplinary schools, removed students are exposed to highly disruptive peers. Using rich administrative data on Texas high school students, we leverage...

In this paper, we study how exogenously given social relations (e.g. friendship) among the firm owners/managers influence the formation of an R&D collaboration network among the firms. In our framework, firms, prior to competing in the market, invest in R&D collaborations with others which...

This paper investigates the interplay of gender, social ties, and negative externalities in bribery using a laboratory experiment. In a modified dictator game with third-party interventions, men more often engage in bribery than women, particularly when they have social ties with the briber....

This article provides evidence from the Congo that social relationships with state officials can decrease one social cost of corruption, in the context of public transport. We first document that police stops can lead to long bribe negotiations. In response, some drivers and officers have built...