The March 2023 bank interventions
In March 2023 banks, both in the U.S. and Europe U.S. were hit by a wave of distress. Policymakers reacted with an array of interventions. In this paper, Merick and Schmelzing are using a new long-run database on banking-sector policy interventions over the last eight centuries to gain perspective as to how sizable this March policy intervention is within a long-run context. More specifically, this database counts a total of 540 individual lending policy interventions over the centuries, of which 410 were deployed across countries since the year 1870. They find:
- Only 57 bank distress episodes over time have seen such a particular mix, and only three have witnessed them combined with relevant private-sector bail-ins.
- Several of the recent interventions already constitute sizable interventions in long-run context, thereby continuing a secular trend of ever greater policy interventions as measured relative to economic output.
- Past evidence suggests that these interventions may yet grow substantially further in size, and could reach new all-time records.
On that basis, recent actions have already been unusual in their policy mix and size – in the database, the vast majority of events with the same pattern of interventions ultimately evolved into “systemic” bank-distress episodes.

The March 2023 bank interventions in long-run context – Silicon Valley Bank and beyond
Authors: Andrew Metrick, Paul Schmelzing
From: Yale University, Boston College
Could narrow banking be the solutions?
In this commentary Laurence Kotlikoff proposes a new form for commercial banks: narrow banks. This idea goes back to the 1930s and comes up every time there’s banking turmoil. A narrow bank would hold deposits entirely in cash, short-term Treasury bills or interest-paying reserves at the Federal Reserve. Bank runs would be eliminated, and deposit insurance would be unnecessary, because depositors would know that even if everyone wanted all their money back the same day, they could get it.
Limited Purpose Banking limits banks and all other financial corporations to their legitimate purpose — financial intermediation. It does so by eliminating all use of leverage by those running our financial exchange system, which connects lenders to borrowers and savers to investors. And it turns on the lights so that everyone can learn, in real time, everything there is to know about the assets in which they’ve invested. This information collection and dissemination would be done by a new federal agency, not Wall Street firms who have repeatedly dissembled about the value and risk of their assets.
Limited Purpose Banking – A Financial System that Can’t Fail
By: Laurence J. Kotlikoff – Boston University