Have the tax payer funded bankster commodity gambling caused all our price increases?

ref
France urges G20 action on food commodities trading

http://www.ibtimes.com/articles/168755/20110624/france-urges-g20-action-on-food-commodities-trading.htm

And ref
Bankers politicians food betting game

http://www.guardian.co.uk/commentisfree/2011/jun/07/bankers-politicians-food-betting-game

And ref

http://www.guardian.co.uk/business/2011/jun/29/quantitative-easing-fuels-commodities-boom?CMP=twt_fd

‘price of copper – which has tripled to around ,200 a tonne in less than three years – is more than twice its "true" value, based on industrial demand. Others, Spencer included, say the banks’ main motivation for offering commodity funds is to keep raw material prices high.’

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