There is a significant trend in Latin America of extending term limits for the presidency in order to allow reelection. There is also evidence that incumbency advantage matters of those presidents seeking reelection in different countries tipically win their electoral bids. Based on a dataset of 137 elections in 18 countries in Latina America, this paper describes the evolution of different reelection schemes since the transition to democracy, reports the success rates
for presidential incumbents and estimates the impact of incumbency on electoral margins controlling for institutional and economic variables.