Résumé : In this online appendix, we provide extra evidence complementing our paper “A time to throw stones, a time to reap: How long does it take for democratic transitions to improve institutional outcomes?” accepted for publication in the Journal of Institutional Economics. First, we provide additional information on the dataset and the sample. Second, we discuss four democratic transitions that illustrate our main finding: Bangladesh in 1991, Senegal in 2000, Hungary in 1990, and Nicaragua in 1990. Third, we report a series of robustness checks: a non-parametric test, using alternative definitions of transitions, using an alternative set of control variables, dropping former socialist countries, including region-specific effects, distinguishing types of transitions, conditioning the effect of democratic transitions on GDP per capita, education, and whether the transfer of power was regular or not.