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Cyprien Milea
International & European Relations
- Division
EU Institutions & Fora
- Current Position
-
Economist
- 7 May 2026
- FINANCIAL INTEGRATION AND STRUCTURE BOXFinancial Integration and Structure in the Euro Area 2026Details
- Abstract
- Capital market supervision remains structurally fragmented in Europe, with 52 national authorities operating under 16 different institutional set-ups and limited, uneven EU-level oversight. This fragmentation leads to divergent supervisory practices and outcomes, despite common EU legislation. Compared with more centralised models such as in the United States, the EU framework is heavily stratified. The box argues that, although convergence of supervisory practices helps, a more integrated supervisory framework, including an enhanced role for ESMA, is a key necessary condition for consistent implementation and enforcement of EU rules, alignment of oversight with the cross-border nature of capital market risks, simplification and cross-border integration.
- JEL Code
- E61, F36, G18, G20, G23 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Policy Objectives, Policy Designs and Consistency, Policy Coordination
- 30 March 2026
- OCCASIONAL PAPER SERIES - No. 383Details
- Abstract
- This paper provides an evidence-based assessment of the EU supervisory landscape by combining a comprehensive mapping of supervisory models and authorities with an analysis of capital market players across key sectors, including market infrastructures, asset management, and crypto-asset service providers. It documents a highly complex and fragmented supervisory architecture, characterised by a wide variety of national supervisory models and multiple authorities operating across the Union. While regulatory harmonisation through the Single Rulebook has progressed, supervisory responsibilities for capital market players remain largely national, with limited and uneven EU-level powers. This institutional fragmentation is increasingly misaligned with market realities, as capital markets have become more cross-border and integrated, albeit with important differences across sectors. The paper develops an analytical framework to assess options for a review of the EU capital markets supervisory architecture. Based on the sectoral mapping, it distils a few guiding principles for supervisory integration: a consistent approach based on common criteria (such as size and cross-border relevance) while accounting for sectoral specificities, and close cooperation between EU and national authorities. Finally, it conducts a sensitivity analysis around alternative degrees of supervisory integration and calibration criteria, and discusses the governance arrangements needed to make integrated supervision effective in practice. The analysis shows that a more integrated supervisory framework could deliver four key benefits: enhanced supervisory effectiveness, improved supervisory efficiency, reduced complexity and compliance burdens for firms operating across jurisdictions, and the removal of supervisory barriers that currently hinder the cross-border integration of EU capital markets.
- JEL Code
- E61 : Macroeconomics and Monetary Economics→Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook→Policy Objectives, Policy Designs and Consistency, Policy Coordination
F36 : International Economics→International Finance→Financial Aspects of Economic Integration
G18 : Financial Economics→General Financial Markets→Government Policy and Regulation
G20 : Financial Economics→Financial Institutions and Services→General
G23 : Financial Economics→Financial Institutions and Services→Non-bank Financial Institutions, Financial Instruments, Institutional Investors
- 30 March 2026
- THE ECB BLOGDetails
- JEL Code
- G10 : Financial Economics→General Financial Markets→General
G20 : Financial Economics→Financial Institutions and Services→General
G30 : Financial Economics→Corporate Finance and Governance→General
F30 : International Economics→International Finance→General