Focusing on the 2016 US money market funds (MMFs) reform, this study assesses the impact of removing rating-based rules on the behavior of regulated investors and on market prices. Difference-in-differences fund-level and security-level analyses show a positive impact of the reform on the level...

The merit of further reform of money market funds by the SEC hinges on the extent to which runs on prime funds pose an investor-protection problem. Reformers assume that the many runs on prime funds in 2008 reflected rational inter-shareholder opportunism, but there is no evidence that retail...

On 4 September 2013 the European Commission released a proposal that seeks to restructure the entire European money market fund (MMF) industry. This article outlines the premises of the proposal and discusses concerns related to the most controversial provisions. We believe that economically...

Money Market Funds (MMFs), which are crucial to short-term funding markets, rely on voluntary support of fund sponsors to maintain stable share values. I develop a general equilibrium model of MMFs to study how sponsor support affects the industry's fragility and regulation. Adverse...

I develop a model of money market funds (MMFs) to study the ability of sponsor support to provide stability to the industry. I find that strategic complementarities in the sponsors' support decisions can make MMFs vulnerable to runs different from the canonical bank-runs: it may lead to runs of...