Zero-lower bound: occasionally binding constraints threshold

Hello everyone,

I am trying to solve zero lower bound using occasionally binding constraints (Guerrieri and Iacoviello 2015).
In my model, I have an expansionary monetary policy shock. However, when I compare the result with ZLB there is no difference. Could it be due to the threshold I have chosen for the nominal rate?


How did you implement the ZBL in your code?