We develop a canonical framework to think about credit market frictions and aggregate economic activity in the context of the current crisis. We use the framework to address two issues in particular: first, how disruptions in financial intermediation can induce a crisis that affects real...

Using a DSGE framework, we discuss the optimal design of monetary policy for an economy where both retail banks and shadow banks serve as financial intermediaries. We get the following results. During crises times, a standard Taylor rule fails to reach sufficient stimulus. Direct asset purchases...

Systemic risk arises when shocks lead to states where a disruption in financial intermediation adversely affects the economy and feeds back into further disrupting financial intermediation. We present a macroeconomic model with a financial intermediary sector subject to an equity capital...