Public confidence in the Reserve ?Bank ?of Australia's ability to ?control inflation was eroding, a top central banker said on Thursday, ?warning that a loss of trust could make the job of taming price pressures even ?more costly. Speaking in Canberra after ?raising interest rates for the fifth time this year, Reserve Bank of Australia ?Deputy Governor ?Andrew Hauser said confidence in the RBA's ability to deliver on ?its inflation mandate had weakened among some Australians.