There are many models of regulatory coordination, but I shall focus on only two: the British and the American. As is well known, the United Kingdom has reformed financial sector regulation and supervision by setting up a Financial Policy Committee (FPC), located in the Bank of England; the major reforms in the United States were introduced through the Dodd-Frank Act, which set up a coordinating committee among the major regulators, the Financial Stability Oversight Council (FSOC).
In discussing these two approaches, I draw on a recent speech by the person best able to speak about the two systems from close-up, Don Kohn. Kohn sets out the following requirements for successful macroprudential supervision: to be able to identify risks to financial stability, to be willing and able to act on these risks in a timely fashion, to be able to interact productively with the microprudential and monetary policy authorities, and to weigh the costs and benefits of proposed actions appropriately. Kohn's cautiously stated bottom line is that the FPC is well structured to meet these requirements, and that the FSOC is not. In particular, the FPC has the legal power to impose policy changes on regulators, and the FSOC does not, for it is mostly a coordinating body.
After reviewing the structure of the FSOC, Kohn presents a series of suggestions to strengthen its powers and its independence. The first is that every regulatory institution represented in the FSOC should have the goal of financial stability added to its mandate. His final suggestion is, "Give the more independent FSOC tools it can use more expeditiously to address systemic risks." He does not go so far as to suggest the FSOC be empowered to instruct regulators to implement measures somehow decided upon by the FSOC, but he does want to extend its ability to make recommendations on a regular basis, perhaps on an expedited "comply-or-explain" basis.