It is neither likely nor desirable for central banks to exit from unconventional monetary policies in the near future. However, it is important that central banks develop an exit strategy, evaluate the merits of new and old monetary policy tools and communicate with the public so as to maintain...

In the past few years permit trading has become a popular policy instrument to achieve emissions reductions or other environmental goals at minimal cost. There are already a number of existing regimes on firm as well as on national level in which permits for SO2, NOX and CO2 emissions but also...