MAP20071508293 Schoenberg, Richard The Impact of bid defences in hostile acquisitions / Richard Schoenberg and Daniel Thornton Sumario: This paper presents an empirical investigation into the use and impact of post-bid takeover defences within recent UK hostile acquisitions. Specifically, using data from 56 contested takeover approaches, the study explores the impact of individual defence tactics on the eventual outcome of the takeover attempt, the bid premium offered to shareholders and the level of executive retention within the target company En: European Management Journal. - Oxford [etc.]. - nº 2-3, April-June 2006 ; p. 142-150 1. Adquisición de empresas . 2. OPA . 3. Management . 4. Instrumentos de defensa comercial . 5. Valoración de empresas . 6. Reino Unido . 7. Estrategia empresarial . I. Thornton, Daniel . II. Título. III. Título: European management journal.