An HHI-based analysis of the H3G-Wind merger Maurizio Naldi To cite this version: Maurizio Naldi. An HHI-based analysis of the H3G-Wind merger. 2016. hal-01378358 HAL Id: hal-01378358 https://hal.archives-ouvertes.fr/hal-01378358 Preprint submitted on 10 Oct 2016 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. An HHI-based analysis of the H3G-Wind merger Maurizio Naldi Dept. of Computer Science and Civil Engineering, University of Rome Tor Vergata, Roma, Italy,
[email protected], WWW home page: http://www.maurizionaldi.it Abstract. Mergers typically represent a cause of concern for possible consequences on the level of competition and the number of choices available to customers. The recently approved merger between Wind and H3G, Italian subsidiaries respectively of Vimpelcom and Hutchison Whampoa, makes no exception. In this paper an analysis of the possible consequences of that merger is reported, by employing the Herfindahl- Hirschman Index as a measure of concentration. It is shown that the Italian mobile telecommunications market would be further pushed into a high concentration situation by the merger, and the entry of Iliad, pro- posed by the would-be merging companies as a remedy measure, would bring the HHI back to its pre-merger value just if Iliad would take a market share larger than 9.46%.