The following thesis analyzes the topic of corporate mergers (M&As) and their relationship with antitrust law, including Italian and European regulations. The first chapter reconstructs the civil and antitrust regulatory framework, from the merger procedure established by the Italian Civil Code to EU Regulation 139/2004. The second chapter examines the competitive dynamics generated by mergers—horizontal, vertical, concentric, and conglomerate mergers—using analytical tools such as HHI, diversification ratio, and GUPPI, also illustrated through specific cases approved by the European Commission. Finally, the third chapter offers an empirical overview of the effects of mergers on markets, innovation, and consumer welfare.
La seguente tesi analizza il tema delle fusioni societarie (M&A) e il loro rapporto con la disciplina antitrust, tra normativa italiana ed europea. Il primo capitolo ricostruisce il quadro normativo civilistico e antitrust, dal procedimento di fusione previsto dal Codice civile fino al Regolamento UE 139/2004. Il secondo esamina le dinamiche concorrenziali generate dalle concentrazioni — fusioni orizzontali, verticali, concentriche e conglomerate — con strumenti di analisi come HHI, diversification ratio e GUPPI, illustrati anche tramite casi concreti decisi dalla Commissione Europea. Il terzo capitolo offre infine una panoramica empirica sugli effetti delle fusioni su mercati, innovazione e benessere dei consumatori.
Le fusioni di società e le conseguenti dinamiche antitrust
STEVANATO, FABIO
2025/2026
Abstract
The following thesis analyzes the topic of corporate mergers (M&As) and their relationship with antitrust law, including Italian and European regulations. The first chapter reconstructs the civil and antitrust regulatory framework, from the merger procedure established by the Italian Civil Code to EU Regulation 139/2004. The second chapter examines the competitive dynamics generated by mergers—horizontal, vertical, concentric, and conglomerate mergers—using analytical tools such as HHI, diversification ratio, and GUPPI, also illustrated through specific cases approved by the European Commission. Finally, the third chapter offers an empirical overview of the effects of mergers on markets, innovation, and consumer welfare.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/117449