Rules vs. discretion

Ten Precepts for 21st Century Regulators

The regulatory reforms that followed the financial crisis of 2007-09 created a financial system that is far more resilient than the one in place 15 years ago. Yet, the events of March 2023 make clear that the progress thus far is simply not enough. To ensure resilience, we need to do more.

To steer the process of further reform, we propose a set of 10 precepts that those who make the rules should keep in mind as they refine the prudential framework. These practical guidelines lead us to conclusions that mirror those in a recent post: regulation should be more rule-based (less reliant on supervisory insight or discretion); simpler and more transparent; stricter and more rigorous; and more efficient in its use of resources. Concretely, this approach means increasing capital and liquidity requirements; shifting to mark-to-market accounting; and improving the transparency, flexibility and severity of capital and liquidity stress tests.

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Time Consistency: A Primer

The problem of time consistency is one of the most profound in social science. With applications in areas ranging from economic policy to counterterrorism, it arises whenever the effectiveness of a policy today depends on the credibility of the commitment to implement that policy in the future.

For simplicity, we will define a time consistent policy as one where a future policymaker lacks the opportunity or the incentive to renege. Conversely, a policy lacks time consistency when a future policymaker has both the means and the motivation to break the commitment.

In this post, we describe the conceptual origins of time consistency. To emphasize its broad importance, we provide three economic examples—in monetary policy, prudential regulation, and tax policy—where the impact of the idea is especially notable....

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Living Wills or Phoenix Plans: Making sure banks can rise from their ashes

Wills are for when you die. Living wills guide your affairs when you lose the capacity to act. We’re all mortal and fragile – not just people, but firms and banks, too. The Dodd-Frank Act of 2010 requires systemic intermediaries (and many others) to create “living wills” to guide their orderly resolution in bad times.

In August, these Dodd-Frank living wills made front-page business news when the FDIC and the Fed rejected those submitted by the biggest banks as inadequate. That should come as no surprise. In their current form, we doubt that living wills would do much to secure financial stability...

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Time-varying Capital Requirements: Rules vs. Discretion (again) 

Among its numerous, innovations Basel III proposes that national authorities use countercyclical capital buffers to temper booms in credit growth and asset prices. [...]

Will it work? Is such a system either practical or desirable? Our view is that regardless of how theoretically attractive, making such time-varying capital regulation discretionary is unlikely to work in practice. Rules would serve us all much better.
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