Sérgio Abranches

Sérgio Henrique Hudson de Abranches (born October 11, 1949) is a Brazilian political scientist, university professor, and political analyst. He graduated from the University of Brasília, where he also earned his master's degree before pursuing a Ph.D. at Cornell University in Ithaca, New York. In the late 1980s, Abranches published the article entitled Presidencialismo de Coalizão (Coalition Presidentialism), in which he developed one of the most influential theories in Brazilian political science.

Biography Born into a traditional family of lawyers from Minas Gerais, his father was president of the city council of Barbacena and connected to Bias Fortes' political group. At age ten, he moved to Brasília, where his father helped organize the new public administration. He studied at University of Brasília (UnB) after AI-5, was an activist against the military dictatorship, and was arrested a few times but faced mild repression due to his father's influence in the Order of Attorneys of Brazil in the Federal District. According to Abranches, this institutional arrangement forces the president to constantly negotiate with Congress, making governance highly dependent on coalition management. The process involves three key stages: forming electoral alliances, distributing government positions to secure support, and transforming these alliances into a functional governing coalition.

The theory remains a cornerstone of Brazilian political science, often associated with a "pessimistic" school of thought that includes scholars like Scott Mainwaring and Bolívar Lamounier. While later research has refined some of its claims, coalition presidentialism continues to shape discussions on executive-legislative relations in Brazil, highlighting both the challenges and adaptations within the country's democratic system.

Works