For several decades, central bankers have been the key risk managers for the economy and the financial system. However, they failed spectacularly to anticipate and prevent the financial crisis of 2007-2009. The financial regulatory reforms since the crisis—capital and liquidity requirements, resolution regimes, restructuring of derivatives markets, and an evolving approach to systemic risk assessment and (macroprudential) regulation—have all been directed at improving the resilience of the system to help sustain strong and stable economic growth. As a result, the likelihood of another crisis-induced plunge in GDP is much lower today than it was a decade ago.

But we still have plenty of work to do. We are at an early stage in the process of building a financial stability policy framework that corresponds to the inflation-targeting framework which forms the basis for monetary policy. Such a framework requires measurable financial stability objectives that are akin to a price index, tools comparable to an interest rate, and dynamic models that help us to understand the link between the two.

In this post, we describe a step forward in developing such a framework: the concept and measurement of GDP at risk....