Regulatory sandboxes have emerged as policy instruments designed to support FinTech innovation while maintaining supervisory oversight. By allowing firms to test financial products in controlled environments, sandboxes aim to reduce regulatory uncertainty and facilitate market entry. Despite their growing adoption, empirical evidence of their effectiveness remains limited, particularly in emerging markets. This study explores the impact of regulatory sandboxes on innovation and market access through a qualitative comparative case study of the United Kingdom, Singapore, and Hungary. Drawing on document analysis and thematic coding, the research evaluates sandbox design, regulatory support, and innovation outcomes across the three jurisdictions. Findings show that sandboxes enhance access to funding, accelerate product development, and foster regulator–firm collaboration. While the UK and Singapore benefit from mature ecosystems and structured frameworks, Hungary illustrates sandbox potential in developing markets. The paper contributes to FinTech regulation literature and provides policy recommendations for optimizing sandbox design across varied institutional contexts.

The advent of regulatory sandboxes has emerged as a strategic policy instrument, with the objective of facilitating innovation in the financial technology (FinTech) sector, whilst ensuring the maintenance of regulatory oversight. These frameworks enable FinTech firms to experiment with new products and services in a controlled environment, thereby fostering experimentation and reducing the regulatory barriers to market entry. Despite the increasing global adoption of regulatory sandboxes, there is a paucity of empirical evidence on the actual impact of such initiatives on FinTech innovation and firm-level outcomes.The present study investigates the role of regulatory sandboxes in supporting FinTech development, with a specific focus on their influence on innovation processes and market entry dynamics. The present paper employs a qualitative multiple case study approach to examine three jurisdictions with distinct regulatory environments: namely, the United Kingdom, Singapore, and Hungary. These countries represent a range of regulatory maturity levels and sandbox design features, providing a substantial foundation for comparative analysis.The findings indicate that participation in a sandbox has a significant impact on firms' access to funding, the speed of product development, and long-term market integration. The United Kingdom and Singapore are exemplars of well-established regulatory ecosystems that are driven by innovation, while Hungary offers insights into the potential of the sandbox model in emerging markets. The present study contributes to the growing corpus of literature on the subject of FinTech regulation, and it provides policy-relevant recommendations for the optimisation of sandbox design in order to balance innovation and oversight.

Prior to the Global Financial Crisis, financial innovation was driven by so many factors, but the Global Financial Crisis changed the regulatory pendulum, which has swung to deeper regulation and also changed the way we thinking about financial innovation. The financial innovation – with its bright and destructive outcomes – is an integral part of the competition in the financial market. But the race is such that the regulatory authorities are in a rather disadvantaged position if we just thinking of the old fashion regulatory paradigm. In this context, the question is what – new – legal institutions – such as regulatory sandbox – could provide financial stability and a proper legal regulation to unregulated financial products and services.

The study examines the main components of the organizational framework for macro-prudential management in the Member States of the European Union. The organizational design of macro-prudential management is a competence of the Member States, which can themselves be grouped into different models. First, the study provides an overview of the international and EU standards and recommendations on the legal status of macro-prudential bodies in the Member States. Then, it lists those basic features of the legal status of macro-prudential bodies which are relevant with a view to the present inquiry before finally turning to address those very features. The study concludes that there is a tendency for the EU macro-prudential body to standardize the basic elements of the legal status of the Member State macro-prudential bodies. However, the process of standardization, in terms of the content of the institutional framework, is still at an early stage and a variety of legal solutions may be identified for each of the substantive aspects. As such, we claim that the institutional framework of macro-prudential policy is best described by a coordinated standardization of the substantive pillars with different formal features and with different legal solutions.

Green fintech merges sustainable finance with data-intensive innovation, but national translations of EU rules can create regulatory risk. This study examines how such risk manifests in Central Europe and which policy tools mitigate it. We develop a three-dimension framework—regulatory clarity and scope, supervisory consistency, and innovation facilitation—and apply a comparative qualitative design to Hungary, Slovakia, Czechia, and Poland. Using a common EU baseline, we compile coded national snapshots from primary legal texts, supervisory documents, and recent scholarship. Results show material cross-country variation in labelling practice, soft-law use, and testing infrastructure: Hungary combines central-bank green programmes with an innovation hub/sandbox; Slovakia aligns with ESMA and runs hub/sandbox, though the green-fintech pipeline is nascent; Czechia applies a principles-based safe harbour and lacks a national sandbox; and Poland relies on a virtual sandbox and binding interpretations with limited soft law. These choices shape approval timelines, retail penetration, and cross-border portability of green-labelled products. We conclude with a policy toolkit: labelling convergence or explicit safe harbours, a cross-border sandbox federation, ESRS/ESAP-ready proportionate disclosures, consolidation of recurring interpretations into soft law, investment in suptech for green-claims analytics, and inclusion metrics in sandbox selection.