Quantitative easing and the collateral problem
Another (IMF) paper of Manmohan Singh deals with the influence of non-conventional monetary policy on collateralized borrowing. In past years, quantitative easing (QE) has absorbed collateral from private funding markets and, thereby, reduced private repurchase (collateral) rates relative to policy rates. An unwinding of central bank balance sheets in the future could increase the spread between policy and collateral rates – if the collateral finds its way on bank balance sheets – or reduce the degree of financial “lubrication” – if it ends up with non-banks. Put differently, in a large-scale QE unwind central banks could temporarily lose control over lending conditions.