RT Journal Article SR Electronic T1 Contemporary State Policies and Intergenerational Income Mobility JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 0717-8921R1 DO 10.3368/jhr.57.4.0717-8921R1 A1 Lars J. Lefgren A1 Jaren C. Pope A1 David P. Sims YR 2020 UL http://jhr.uwpress.org/content/early/2020/05/04/jhr.57.4.0717-8921R1.abstract AB Using county-level analysis, this study demonstrates that there exists at most a minor relationship between the large, contemporary geographical variation in U.S. intergenerational income mobility and state-level policies. In addition to investigating the effects of specific policies, we introduce an omnibus test for state policy differences in total, based on the principle of geographic discontinuities. We further explore the discrepancy between these findings and the expected efficacy of mobility-enhancing policies seen in common, applied economic models and successful program evaluations. We conclude that the gap between quasi-experimental evaluations and observed policy effects presents pressing questions for further study.