Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
How persistent are economic gaps across ethnicities? The convergence of ethnic gaps through the third generation of immigrants is difficult to measure because few datasets include grandparental birthplace. I overcome this limitation with a new three-generational dataset that links immigrant grandfathers in 1880 to their grandsons in 1940. I find that the persistence of ethnic gaps in occupational income is 2.5 times stronger than predicted by a standard grandfather-grandson elasticity. While part of the discrepancy is due to measurement error attenuating the grandfather-grandson elasticity, mechanisms related to geography also partially explain the stronger persistence of ethnic occupational differentials.