Copper retreated after its biggest weekly gain in a year, as the greenback advanced against the yen and the euro amid political turmoil in Japan and France. Futures on the London Metal Exchange fell 0.9% on Monday, erasing earlier gains. The dollar rose on news of the French prime minister’s resignation and the near-certain elevation of a pro-stimulus candidate as Japan’s next prime minister. A stronger dollar weighs on commodities like copper, making them more expensive for buyers in other currencies. But the sector is facing tighter supply due to disruptions at major mines, including Indonesia’s Grasberg, the world ... (full story)