This thesis aims to document the effect of political dynasties on socioeconomic and political outcomes among Brazilian municipalities. This topic is relevant to understand the consequences of the concentration of power in the society as well as identifying whether harmful effects already documented in the family succession of CEOs are also present in politics. For this purpose, the discontinuity of concurred electoral races is used as a quasiexperiment. The results suggest that family successions increase the probability of electing a woman, decrease the mayor s average age and increase mayors legislative support. However, dynasties do not affect policy choices or welfare.