The empirical economic growth literature is criticized for its lack of robustness. For different definitions of … robustness, conclusions vary from "almost every correlation is fragile" to "a substantial number of explanatory variables are … robustness using quasi-experiments. The analysis pertains to sign, size and significance of the effects, and we relax the quasi …

elements of model uncertainty, namely theory uncertainty and parameter heterogeneity, by unifying two recent econometric …