Reuters Australia's central bank is pondering whether to take its foot off the policy brakes at a time when most of their rich-world peers are desperately trying to find an accelerator for their sputtering economies. Seeking to head off inflationary pressures, the Reserve Bank of Australia (RBA) has kept rates at 4.75 percent for almost a year, a level it terms “tighter than normal”. But a darker economic outlook abroad and downward revisions to core inflation at home have led the RBA to flag the prospect of a cut in rates. In this case, it is not so much a question of whether the economy requires stimulus but whether it still needs to be restrained. “They must be wondering whether policy needs to be on the tight side of neutral given everything that's happening globally,” said Brian Redican, a senior economist at Macquarie. A slower world is a potential pot hole for a small open economy like Australia that relies heavily on exports of commodities such as coal and iron ore. The threat has already been enough to trigger an outbreak of easings in emerging nations. Bank of Israel Governor Stanley Fischer cited the threat of slower global growth for his surprise cut. That concern was echoed by the RBA last week when it noted forecasts for global growth had been cut back to no better than average. “There's also an argument that the ‘neutral' rate is lower now than in the past given debt is so high, nobody's borrowingand credit growth is the slowest in 35 years,” said Redican. A neutral level for rates is one that neither stimulates nor retards economic growth and until this year the RBA had estimated it to be around 4.5 percent for Australia. The current rate of 4.75 percent would not, then, seem very restrictive but its impact on borrowing argues otherwise. Annual growth in the total stock of credit has slowed to just 3.0 percent, far from the 16-percent peak seen in 2007. Likewise, annual growth in the A$1.2 trillion of outstanding mortgage credit is down at 5.8 percent. That was the slowest since records began in 1976 and a long way from the 18 to 21 percent pace typical of the first half of the last decade. __