Regulators used to worry about institutions that were “too big to fail”; now, they worry about institutions that are “too connected to fail”. Size matters ; but connectivity matters more. 21. This high degree of interdependence means that governments in major economies can no longer act in isolation. Regulatory policies must be globally consistent to minimise the risk of arbitrage. Supervisory actions must be internationally coordinated to maximise their effectiveness. 22. Yet, regulation and supervision is essentially a national prerogative, that must cater to the domestic context and circumstances to be effective. Recognising this tension, international policymakers have focused on reaching consensus on international standards that serve as a minimum benchmark, while allowing countries the freedom to choose appropriate regulatory tools to fit individual circumstances. A uniform, one-size-fits-all international regulatory regime will not work. 23. The most striking application of this principle is in the approach being taken for the regulation of global systemically important financial institutions, or G-SIFIs. These institutions, because of their size, complexity, cross-border nature, and interconnectedness, would cause significant disruption to the global financial system and economic activity, if they failed in a disorderly manner. There is thus a need for global supervisory cooperation, in order to identify the key points of failure within such institutions. The Financial Stability Board, together with other international standard setting bodies, is rethinking its approach towards the monitoring, sharing, and mitigation of systemic risks posed by G-SIFIs. BIS central bankers’ speeches  3  24.
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