The paper shows that peer information which banks collected from previous lending plays a role in current loan pricing. I construct peer information at the bank-firm level and find that firms obtain lower loan rates when borrowing from banks that lent to more similar peers in recent periods. The...

In this paper, I use a social interactions framework to detect whether individual smoking decisions are influenced by classmate smoking decisions. There are several large challenges in addressing this question, including the endogeneity of school (and thus classmates) through residential...

We study the nature of peer effects in the market for new cell phones. Our analysis builds on de-identified data from Facebook that combine information on social networks with information on users' cell phone models. To identify peer effects, we use variation in friends' new phone acquisitions...

Using detailed Danish administrative data covering the entire population of students entering higher education in the period 1985 to 2010, we investigate the importance of a student's peers in higher education for the decision to drop out. We use high school GPA as a predetermined measure of...

This paper studies the effect of social learning on political outcomes in a model of informative campaign advertising. We find that communication networks among voters have important effects on parties' incentives to disclose political information, on voters' learning about candidates running...

Education policies depend in part on the presence of externalities, but very little evidence exists to confirm the existence of such externalities. In this paper we investigate if there are spillover effects from education within peer groups at the workplace. We estimate the effect of increasing...

This paper provides new evidence on how the presence of immigrant peers in the classroom affects native student achievement. The analysis is based on longitudinal administrative data on two cohorts of vocational training students in Italy's largest region. Vocational training institutions...