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Peak gold
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Peak gold : ウィキペディア英語版
Peak gold

Peak gold is the date at which the maximum rate of global gold extraction is reached. According to Hubbert peak theory, after the peak, the rate of production declines until it approaches zero. Unlike petroleum, which is destroyed in use, gold can be reused and recycled.
==Supply and demand==
World gold demand (defined in terms of total consumption excluding central banks) in 2007 was 3,519 tonnes.〔
〕 Gold demand is subdivided into central bank reserve increases, jewellery production, industrial consumption (including dental), and investment (bars, coins, exchange-traded funds, etc.)
The supply of gold is provided by mining, official sales (typically gold by central banks), de-hedging (physical delivery of metal sold months before by mining companies on terminal markets) and old gold scraps and total world supply in 2007 was 3,497 tonnes.〔
〕 Gold production (mining) does not need to make up for gold demand because gold is a reusable resource. Currently, yearly gold mining produces 2% of the existing above-ground gold which is 158,000 tonnes (as of 2006).〔
〕 In 2008, gold mining produced 2,400 tonnes of gold, official gold sales close to 300 tonnes, and dehedging (physical delivery of metal sold months before by mining companies on terminal markets) close to 500 tonnes.〔


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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