John Kemp Great Debate-- John Kemp is a Reuters columnist. The views expressed are his own --

It is time to add another victim to the ever-growing list of institutions (Bear Stearns, Lehman Brothers) and theories (value at risk, fair value accounting and originate to distribute) which have been tested by the financial crisis and found wanting. The central bank practice of inflation targeting -- the jewel in the crown of modern monetary economics -- has palpably failed.