The Frightening Similarity Between Key Bridge and Bank Stress Tests
On Friday, the Washington Post reported that Key Bridge passed all its stress tests before it fell into the harbor. These were well-established protocols looking at structural resilience – acceptable, if not awesome – and, after 9/11, also at terrorist attack. That a giant container ship might plow into the bridge was not contemplated even though this has happened before in the U.S. and not that long ago. Which brings me to bank stress-testing and how unlikely it is to matter under actual, acute stress because the current U.S. methodology correlates risk across big banks in ways that can make bad a lot worse. Even more troubling, tests still don’t look over the banking parapet.