摘要:This article aims to identify the variables with the greatest impact on the chances of electoral success for candidates for the Brazilian Chamber of Deputies* in the 1998, 2002 and 2006 elections. Based upon data provided by the Supreme Electoral Court, this article firstly analyzes the relations between occupation, gender and level of education, on the one hand, and the electoral results (those elected and not elected), on the other. The article then presents a model of logistic regression in order to measure the real impact of these variables on the candidates’ chances of electoral success. The same procedure was repeated for the right-, center and left-wing parties. We conclude that being a professional politician is the most important variable in determining the electoral success of a Federal Deputy candidate in Brazil, in the elections that were analyzed.