A Comparative Study on the Presidential Impeachment in South America

2023 Fiscal Year Final Research Report

• Project/Area Number: 20K13391
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 06010:Politics-related
• Research Institution: Kanda University of International Studies
• Principal Investigator: ISODA SAORI 神田外語大学, 外国語学部, 講師 (70812064)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 大統領制 / 大統領―議会関係 / 大統領弾劾 / 南米の政治

Outline of Final Research Achievements

In order to investigate the tension between the executive and legislative branch, this study focuses on the presidential impeachment system and tries to find the reason why some presidents have impeached while others not. As a result of the investigation, this study finds that when the leading party support the president, the consequence will change depend on the internal factional struggle of this party. However, if the president's party fails to occupy the congress seats, the presidential approval rating will affect impeachment process.

Free Research Field

政治学

Academic Significance and Societal Importance of the Research Achievements

大統領弾劾は大統領―議会の緊張関係を測る指標であり、行き過ぎた緊張関係は民主主義に影響を及ぼしかねない。弾劾制度は問題のある大統領を交代させることができるという利点を持つ反面、政治家同士の権力闘争や派閥争いにより任期を全うできない大統領が頻発すれば、民主主義の質を悪化させる可能性を秘めている。そこで本研究は、大統領弾劾の可否条件を明らかにすることで、弾劾制度と民主主義の関係性について検討した。