We study negative interest rate policy (NIRP) exploiting ECB's NIRP introduction and administrativedata 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...

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...