Obesity rates continue to climb in the US. Recent work explores social factors that may contribute to these trends, including social norms. Most work in this area focuses on adults and older youth, missing key early years. This paper explores obesity peer effects in New York City schools for...

We identify and estimate the effects of student-level social spillovers on standardized test performance in New York City (NYC) elementary schools. We leverage student demographic data to construct within-classroom social networks based on shared student characteristics, such as a gender or...