The cost of line – from oil to healthy gas, from minerals to rural tender materials – is an mercantile non-static whose implications have always been sincerely elementary to understand. A cost boost is generally a disastrous eventuality for industrialized economies that are importing tender materials, such as Europe, Japan and a United States, while a descending cost is a certain event. Times of low commodity prices have mostly coincided with phases of mercantile expansion in industrialized countries. This was a box in a ‘60s and in a ‘90s. Also, a opening of financial markets has roughly always left in a conflicting instruction of commodities. This creates it tough to explain a stream situation, characterized by collapsing commodity prices, diseased mercantile expansion and flighty financial markets, all during a same time.