We analyze optimal monetary policy in a model with two distinct financial frictions. First, borrowing is subject to collateral constraints. Second, credit flows are intermediated by monopolistically competitive banks, thus giving rise to endogenous lending spreads. We show that, up to a second...

What is the long-term impact of negative interest rates on bank lending? To answer this question we construct a unique summary measure of negative rate exposure by individual banks based on exclusive survey data, and couple it with the credit register of Spain to identify this impact on the...