Search Results
Working Paper
Bank branching
Report
Money market funds intermediation, bank instability, and contagion
In recent years, U.S. banks have increasingly relied on deposits from financial intermediaries, especially money market funds (MMFs), which collect funds from large institutional investors and lend them to banks. In this paper, we show that intermediation through MMFs allows investors to limit their exposure to a given bank (i.e., reap gains from diversification). However, since MMFs are themselves subject to runs from their own investors, a banking system intermediated through MMFs is more unstable than one in which investors interact directly with banks. A mechanism through which ...
Working Paper
Gates, Fees, and Preemptive Runs
We build a model of a financial intermediary, in the tradition of Diamond and Dybvig (1983), and show that allowing the intermediary to impose redemption fees or gates in a crisis--a form of suspension of convertibility--can lead to preemptive runs. In our model, a fraction of investors (depositors) can become informed about a shock to the return of the intermediary's assets. Later, the informed investors learn the realization of the shock and can choose their redemption behavior based on this information. We prove two results: First, there are situations in which informed investors would ...
Conference Paper
Contagion and efficiency in gross and net interbank payment systems
Discussion Paper
Gates, Fees, and Preemptive Runs
In the academic literature on banks, ?suspension of convertibility??that is, preventing the exchange of deposits at par for cash?has traditionally been seen as a potential means of preventing economically damaging bank runs. In this post, however, we show that giving a financial intermediary (FI) the option to suspend convertibility may ultimately increase the risk of runs by causing preemptive runs. That is, investors who face potential restrictions on their future access to cash may run when they anticipate that such restrictions may be imposed.
Discussion Paper
The Fragility of an MMF-Intermediated Financial System
Since the financial crisis of 2007-09—and, in particular, the run on prime money market funds (MMFs) in September 2008—policymakers have been concerned that the funds’ fragility may render banks themselves more susceptible to risk. For instance, in a recent article and speech arguing in favor of MMF reform, New York Fed President Bill Dudley stated that MMF fragility may contribute to financial market systemic risk. The idea that the susceptibility of MMFs to runs may make the financial system more unstable seems intuitive, but is it correct? In this post, we show that the idea isn’t ...
Report
Bank capital regulation and structured finance
We construct a model in which bank capital regulation and financial innovation interact. Innovation takes the form of pooling and tranching of assets and the creation of separate structures with different seniority, different risk, and different capital charges, a process that captures some stylized features of structured finance. Regulation is motivated by the divergence of private and social interests in future profits. Capital regulation lowers bank profits and may induce banks to innovate in order to evade the regulation itself. We show that structured finance can improve welfare in some ...
Report
Gates, fees, and preemptive runs
We build a model of a financial intermediary, in the tradition of Diamond and Dybvig (1983), and show that allowing the intermediary to impose redemption fees or gates in a crisis—a form of suspension of convertibility—can lead to preemptive runs. In our model, a fraction of investors (depositors) can become informed in advance about a shock to the return on the intermediary’s assets. Later, the informed investors learn the realization of the shock and choose their redemption behavior based on this information. We prove two results: First, there are situations in which informed ...