register now for free unlimited access to reuterscom register the south facade of the european central bank ecb headquarters in frankfurt germany december 30 2021 reuterswolfgang rattay lisbon sept 15 reuters  the european central bank should take as small steps as possible in raising its interest rates so as not to destabilise the economy ecb policymaker mario centeno said on thursday a clear tightening or even too abrupt a normalisation could unwarrantedly destabilise the transmission mechanism and the real economy centeno portugals central bank governor told an event in lisbon monetary policy must remain predictable and acting at the margin in as small steps as possible reporting by sergio goncalves writing by francesco canepa editing by jon boyle