Major concerns were raised with respect to the prospect of the exit strategy from Quantitative Easing. However, most of these concerns were related to US and the other developed economies which implemented this monetary policy. Less attention has been given the impact on emerging economies.
The Fed has recently announced that it will renounce to Quantitative Easing policy. Alan Blinder has a very interesting material that explains pretty well the rationales for why has the FED chosen this approach, how was implemented and what are the exit strategies.