On September 19, 2008, at the height of the financial crisis, the U.S. Treasury announced that it would guarantee the liabilities of money market mutual funds (MMMFs). And, the Federal Reserve created an emergency facility (“Asset-Backed Commercial Paper Money Market Mutual Fund Liquidity Facility”) to finance commercial banks’ purchases of illiquid MMMF assets. These policy actions halted the panic.

That episode drove home what we all knew: MMMFs are vulnerable to runs. Everyone also knew that the Treasury and Fed bailout created enormous moral hazard. Yet, the subsequent regulatory efforts to make MMMFs more resilient and less bank-like have proven to be half-hearted and, in some cases, counterproductive. So, to halt another run in March 2020, the Fed revived its 2008 emergency liquidity facilities.

We hope the second time’s the charm, and that U.S. policymakers will now act decisively to prevent yet another panic that would force yet another MMMF bailout.

In this post, we briefly review key regulatory changes affecting MMMFs over the past decade and their impact during the March 2020 crisis. We then discuss the options for MMMF reform that the President’s Working Group on Financial Markets identifies in their recent report. Our conclusion is that only two or three of the report’s 10 options would materially add to MMMF resilience. The fact that everyone has known about these for years highlights the political challenge of enacting credible reforms.