While negative interest rates stimulate the real economy by enhancing credit supply and improving the wealth situation of firms and households, they might come with side effects with regard to banking and financial stability. In an assessment of the trade-off between the ability of a central...

Negative interest rates are a new (and controversial) monetary policy tool. This paper studies a novel signalling channel and asks whether negative rates can be 1) an effective and 2) an optimal policy tool. 1) We build a financial-friction new- Keynesian model in which monetary policy can set a...

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...

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...