The Dow Jones industrial average moved up 132 points on Tuesday and all major indicators rose more than 1% as the Australian central bank’s decision to raise interest rates boosted optimism about the world economy.   Investors' show of confidence ahead of a flood of corporate earnings reports came as Australia became the first major country to raise interest rates since the onset of the financial crisis last year.  The move signals that policymakers see that country's economy as strong enough to withstand higher borrowing costs. That touched off hopes that other economies might also be growing.

Australia's decision dented demand for the U.S. dollar, which, in turn, raised commodities prices.  US energy and materials stocks moved up, oil also rose, and gold reached a record high.  Stock investors cheered the drop in the dollar because it boosts corporate profits by making U.S. goods cheaper for overseas buyers.