Monetary policy transmission may be impaired if banks rebalance their portfolios towards securities. We identify the bank lending and risk-taking channels of monetary policy by exploiting – Italian's unique – credit and security registers. In crisis times, with higher ECB liquidity, less...

We study negative interest rate policy (NIRP) exploiting ECB's NIRP introduction and administrative data from Italy, severely hit by the Eurozone crisis. NIRP has expansionary effects on credit supply-- -and hence the real economy---through a portfolio rebalancing channel. NIRP affects banks...