I turn now to other arguments, not that monetary policy is ineffective, but that it is not terribly precise. One common expression is that it is a blunt instrument. People rarely define what they mean by that term, but I think they have in mind two things. First, if inflation is rising because particular prices are moving a lot, monetary policy cannot focus precisely on exactly those particular prices, or those particular features of economic behaviour causing the price rises. It is a general, rather than specific, instrument in that sense. Second, I think that when people say ‘blunt’, they mean ‘unfair’ – particularly that when interest rates rise, this affects households who owe money on a home loan. (Presumably the same argument would mean that it is equally unfair to savers to put interest rates down when the economy is weak.)