The greenback rose against the euro and the Aussie this morning (August 4th), after trading at a 2009 low yesterday.Appetites for riskier currency were sated today ahead of new data which is widely expected to show that producer prices in Europe fell at an unprecedented pace in June, which will pressure the European Central Bank to keep lending rates low.Speaking to Bloomberg, Hideki Amikura, deputy general manager of foreign exchange in Tokyo at Nomura Trust and Banking, commented: "The European report may indicate deflation risks in the euro area are increasing. The central bank probably won't alter policy settings [and] the euro is likely to weaken."Meanwhile, the Australian dollar pulled back from a ten-month high against its US counterpart after a statement from the Reserve Bank of Australia (RBA) describing the current 49-year low cash rate as "appropriate" in view of the wider economic conditions.The RBA has knocked off 425 basis points off the cash rate since September, taking it to an even three per cent.