After the colossal financial crisis of 2008, many monetary policy analyses have shown the profound implications for financial stability of monetary policy in a liquidity trap. This paper investigates how monetary policy in a liquidity trap affects financial stability in a New Keynesian model...

Negative interest rates remain a controversial policy for central banks. We study a novel signalling channel and ask under what conditions negative rates should exist in an optimal policymaker’s toolkit. We prove two necessary conditions for the optimality of negative rates: a time-consistent...