AUD review

Western Union notes in a report on Tuesday:

• The Aussie dollar's fall below $0.7700 today took it to its weakest since May 2009. Signs of waning economic momentum at home and in China weighed anew on the Aussie. 
  
  
• Business optimism in Australia deteriorated to a reading of zero in February, the lowest in more than a year, while wholesale inflation in China fell nearly 5 percent in February, fanning worries of a deflationary spiral in prices that could potentially further choke off growth in the world's No. 2 economy. 
  
  
• From an RBA policy perspective, it keeps the door unlocked to further rate cuts, an outlook that contrasts expectations for the Fed to boost rates.