Copper has now risen above the 8,000 USD a tonne price, stocks are falling and some supply problems in the American region has caused speculative buying. This has occurred with the weak dollar price.
The dollar has fallen to a new low against the Euro, following pressure from the 50 percent cut in rates by the US Federal Reserve who are trying to make the US economy more stable.
The weaker the dollar the cheaper the prices of metal such as copper, which is priced in dollars.