> The story of how this works begins in 27 industrial warehouses in the Detroit area where a Goldman subsidiary stores customers’ aluminum. Each day, a fleet of trucks shuffles 1,500-pound bars of the metal among the warehouses. Two or three times a day, sometimes more, the drivers make the same circuits. They load in one warehouse. They unload in another. And then they do it again.
http://www.nytimes.com/2013/07/21/business/a-shuffle-of-alum...
> The story of how this works begins in 27 industrial warehouses in the Detroit area where a Goldman subsidiary stores customers’ aluminum. Each day, a fleet of trucks shuffles 1,500-pound bars of the metal among the warehouses. Two or three times a day, sometimes more, the drivers make the same circuits. They load in one warehouse. They unload in another. And then they do it again.