This paper develops a theoretical model of trading in the federal funds market that captures characteristics of discount window borrowing and the federal funds market during the first year of the financial crisis, including the narrowing of the spread between the discount rate and the target...

We introduce liquidity frictions into an otherwise standard DSGE model with nominal and real rigidities, explicitly incorporating the zero bound on the short-term nominal interest rate. Within this framework, we ask: Can a shock to the liquidity of private paper lead to a collapse in short-term...