New WP w/ @adegendre.bsky.social, @nsalamanca.bsky.social, Zenou: https://www.nber.org/papers/w32429?utm_campaign=ntwh&utm_medium=email&utm_source=ntwg16. Using random assignment to classrooms, we show that exposure to minority peers ⬇️ student effort, parental investments, & teacher engagement & results in ⬇️ test scores. Check out our new model too.