Using a comprehensive transaction-level dataset, we show that the pricing of overnight treasury triparty repos is far from being uniform across market participants and depends on a delicate interplay among (1) the number of counterparties, (2) counterparty diversification, and (3) how actively such counterparties trade. Importantly, this interplay can be reshaped in times of stress.
WP
The Anatomy of Contagion and Macroprudential Policies
I propose a model to highlight the relevance of basic characteristics of the structural makeup of contagion for the design of macroprudential policies. Besides characterizing optimal policies under a variety of environments, I show that failing to incorporate said characteristics can lead to inappropriate strategies for crisis prevention.
2022
WP
Regulating Financial Networks: A Flying Blind Problem
I develop a model for studying the role that uncertainty about the susceptibility of a financial network to contagion plays in the behavior of its member institutions and the design of preemptive interventions. As uncertainty affects the perception of contagion risk, it can reshape market equilibrium inefficiencies, altering the scope of welfare-improving interventions. The socially optimal level of uncertainty depends on a delicate balance between the information technologies available to policymakers and structural features of the network.