Ex-ante versus Ex-post in competition law enforcement: Blurred boundaries and economic rationale

Abstract

This paper explores the evolving landscape of competition law enforcement, focusing on the dynamic interplay between ex-ante and ex-post approaches. Amidst the digital transformation and regulatory shifts, traditional enforcement mechanisms are being re-evaluated. This study aims to dissect the economic rationale behind these shifts, proposing a hybrid framework that balances legal certainty with the flexibility needed to address contemporary market challenges. In particular, the analysis highlights the emergence of new competition policy approaches that combine regulatory-type interventions with strengthened enforcement strategies.