In this issue: Special Dossier on the transposition procedure of Directive 2014/104/EU: draft proposal of transposition submitted by the AdC to the Government; substantive and adjective issues, the proposal’s drafting procedure (reasons, pros and cons of the different options expressed in the proposal), summary of the different positions expressed by the participants in the consultative Workshop, prior framing and report of the public consultation carried out by the AdC, as well as the justifying document annexed to the draft proposal for transposition of the Directive; Interplay of securities operations in light of antitrust rules and of merger control rules; the importance and impact of the decentralization of the enforcement of Competition Law, at a subnational level: the Spanish case; The Economic-Legal challenges posed by online platforms which promote the so- called sharing economy: the case of Uber and its ongoing conflict with the taxi sector; Case-commentary on the judgement n.º 376/2016 by the Constitutional Court (devolutive effect as a result of judicial review).