July 9 (Bloomberg) -- Copper rose the most in a month, ending a four-day drop, as a weak dollar and signs of an economic rebound boosted the metal used in pipes and wires.
The six-currency U.S. Dollar Index fell as much as 1.3 percent, burnishing the appeal of commodities as a hedge against inflation. The number of U.S. workers filing first-time claims for unemployment benefits fell last week to the lowest since January, the Labor Department said. June car sales in China, the biggest metals user, jumped 48 percent, the most in three years.
"One of the main drivers today is the dollar weakness," said Michael K. Smith, the president of T&K Futures & Options in Port St. Lucie, Florida. "Any positive news for the economy is also going to help out copper."
