O sistema partidário brasileiro em meio ao fim das coligações proporcionais

Abstract

The main explanatory variable of a party system is the electoral system, i.e. the set of rules that defines how voters express their preferences and how their votes are counted to select representatives. In the last decade, marked by political instability over different electoral cycles, substantive changes have been made to the Brazilian electoral system, especially with the end of coalitions in proportional elections, an electoral rule widely associated with party fragmentation in the country. As a result, the party system is expected to undergo profound transformations. In particular, the aims of this thesis are (1) to study the electoral strategies adopted by Brazilian political parties for the 2022 elections (federal and state) given the changes in the rules and (2) to study the effects of these changes on the results of the election, with a focus on proportional elections in both cases.