We examine a determinant of cultural persistence that has emerged from a class of models in evolutionary anthropology: the similarity of the environment across generations. Within these models, when the environment is more stable across generations, the traits that have evolved up to the previous generation are more likely to be suitable for the current generation. In equilibrium, a greater value is placed on tradition and there is greater cultural persistence. We test this hypothesis by measuring the variability of climatic measures across 20-year generations from 500 to 1900. Employing a variety of tests that use different samples and empirical strategies, we find that populations with ancestors who lived in environments with more cross-generational instability place less importance on maintaining tradition today and exhibit less cultural persistence.

This article has been retracted. Please see: https://doi.org/10.1093/restud/rdac085

We study the effect of exposure to immigrants on the educational outcomes of U.S.-born students, using a unique dataset combining population-level birth and school records from Florida. This research question is complicated by the substantial school selection of U.S.-born students, especially among White and comparatively affluent students, in response to the presence of immigrant students in the school. We propose a new identification strategy, comparing sibling outcomes with the inclusion of family fixed effects, to partial out the unobserved non-random selection of native-born families into schools. We find that the presence of immigrant students has a positive effect on the academic achievement of U.S.-born students, especially for students from disadvantaged backgrounds. Moreover, the presence of immigrants does not negatively affect the performance of affluent U.S.-born students, who typically show a higher academic achievement compared to immigrant students. We provide suggestive evidence on potential channels.