Keynes emphasized a specific situation in which the liquidity preference becomes absolute, leading to monetary policy ineffectiveness when nominal interest approaches the zero-bound rate. This situation was termed a liquidity trap (LT) by Robertson and was popularized by the Hicks- Hansen...

The asset purchase program of the Euro area, active between 2015 and 2018, constitutes an interesting special case of Quantitative Easing (QE) because the ECB's (Public Sector Purchase Program) PSPP program involved the purchase of the bonds of peripheral Euro area governments, which were...