Ruiz Figueroa, Miguel Ángel2024-05-202024-05-202016-06-01https://hdl.handle.net/20.500.14468/13226Paul Grice was a philosopher that made a great contribution to the development of pragmatics after the publication of the essay ‘Logic and Conversation’ in 1975. The core of the document is the Cooperative Principle which set four maxims (quantity, quality, relation and manner) that should govern a conversation. The violations of the maxims also lead us to the concept of implicature. This document reviews a sample of political speeches under the Gricean Cooperative Principle perspective, in order to assess the violations of the maxims. The five speeches under study have been addressed by Barack Obama, two of them are related to the approval of regulations, one to the death of Osama bin Laden and the remaining two are his Victory speeches. A review of the texts has been conducted to mark those instances registering a violation of the Gricean maxims. The length of the speeches and approval index of the President at the moment of each speech have been also considered. The review of the results per number of violations aggregated and by individual speech reveal that the maxim of quantity shows the highest number of occurrences while the maxim of quality records the lowest. We will conclude that the different types of speeches produce different patterns of violations and that the highest and lowest number of violations have a correlation with presidential approval rates.enAtribución-NoComercial-SinDerivadas 4.0 Internacionalinfo:eu-repo/semantics/openAccessGricean Cooperative Principle and Barack Obama speeches. A case studyproyecto fin de carreraCooperative Principlemaximspolitical speechesviolations