Without inventory demand financial speculation couldn’t work.
如果没有存货需求，金融投机将无法运转。
This demand was answered by my first small book, "Speculation A Profitable Profession".
这种要求已经在我的《投机是一门有利可图的职业》书中给予回答。
Energy Prices: Supply, Demand Or Speculation?
能源价格：供给，需求或投机？
Energy Prices: Supply, Demand Or Speculation?
能源价格：供给，需求或投机？
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