I build a dynamic model of the shadow banking system that intermediates funds through the interbank repo market to understand its failing mechanism during the recent financial crisis. The model emphasizes a key friction, the maturity mismatch between short-term repo and long-term investments...

We analyze the impact of a regulatory reform in a novel framework that jointly determines banks’ bilateral networks and platform access. In our model, banks use their bilateral connections to obtain indirect access to the platform, which saves direct entry costs but results in risk...

Societies provide institutions that are costly to use, but able to enforce long-run relationships. We study the optimal decision problem of using self-governance for risk sharing or governance through enforcement provided by these institutions. Third-party enforcement is modelled as a costly...

When people share risk in financial markets, intermediaries provide costly enforcement for most trades and, hence, are an integral part of financial markets' organization. We assess the degree of risk sharing that can be achieved through financial markets when enforcement is based on the threat...