target will help people believe more strongly that prices will risethere are doubts within the boj on whether pledging to achieve higher inflation could change public perceptions dramatically especially if inflation is still distant from the current target said a source familiar with its thinkingwith no clear breakthrough on other tools central banks have at their disposal managing public expectations is now among their strongest weaponsand yet the rising cost of prolonged low interest rates from soaring property prices to vanishing returns for pension funds means central banks cannot just stand by hoping inflation will perk up some daythe side effects are more acute now and i think we should tone down our communication that benefits far outweigh the costs an ecb policymaker said on condition of anonymityrejecting the idea that interest rates could stay low forever imf managing director kristalina georgieva likened policymakers complacency to a frog who doesnt realise it is swimming in gradually heating water until it is too latethis is the risk that we are facing she told a conference this week held on the sidelines of the g20 meeting that an incremental pileup of debt in a low interest environment doesnt give us a good signal to jump out of the boiling water