Akin Oyedele August 10, 2015The pain is far from over for commodity prices. Gold, crude oil, copper, and aluminum have all had ugly plunges this year, especially in July. And as far as analysts at Macquarie see it, it's only going to get worse.In a note to clients on Monday, the firm writes that the plunge in prices is not just a story of oversupply in commodities but also an undersupply of the dollar. And so as dollars become more scarce, the dollar gets more expensive, meaning that on a gross basis, fewer dollars buy more commodities, making it hard...