摘要:This paper explores the differences and similarities between the electoral systems in Brazil and Colombia and how it affects Brazilian incumbent Federal Deputies’ and Colombian Diputados’ political career choices and electoral suc- cess. The main argument is that even though both electoral systems are, in general terms, quite distinct, they appear to produce very similar effects in career choices and reelection. The main cause of the effects found is that the institutional minu- tiae of the two electoral systems increase their similarities.