Another factor in rising food prices: the tinplate cans common to every supermarket shelf are getting more expensive to produce - Commodities and speculation have traveled together since cave dwellers first traded flint rock. Crude oil suffered a stunning collapse in 2008, losing more than $100 per barrel in five months, while gold prices nearly doubled between 2007 and 2008. But there's another commodity that commands a prominent place in nearly every home, without nearly the same attention: tin-plated steel [...]
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[www.businessweek.com]