Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We document a robust correlation between the Bricker and Li (2017) social trust indicator and the Chetty et al. (2022a) economic connectedness measure. The two indicators predict upward income mobility independently to a comparable extent. The Bricker–Li indicator is defined as the average credit score of a community, and the Chetty et al. measures are based on Facebook befriending data. The consistency and complementarity between these two indicators underscore trust as a crucial ingredient of social capital.