The phenomenon of the rise of the prices in foods is, nowadays, one of the main preoccupations of the developed countries. Several international organisms have attributed to the cereal plantations for the production of biocombustibles the cause of the inflationary push, an opinion that already we have discussed at the time, but that it serves as departure point to understand the phenomenon of the prices and how the rise of prices is infected on the inside and outside a market. Why one says that the wheat causes an increase of prices in the great majority of foods when many of them do not use to the wheat like consumption? Leaving to us even the market of

foods, in anything it would have to influence the price of the wheat in the opium plantations, that destine their production, a part for the pharmaceutical sector, and another one (much greater) for the illegal drug production. If we entered ourselves in Afghan ground, where 93% of the opium are harvested that is consumed throughout the world, we will include/understand a little more about the phenomenon of the formation of prices. The agriculturists work this plant and soon sell their production according to the prices of market. Whereas in 2006, a kilo of opium quoted in US$ 125, in September of 2007 it had fallen until US$ 91. Therefore, the trajectory that followed the prices of the opium was of sign opposed to the one of the wheat, that in Afghan territory reached to revalue itself in a 60% during the 2007. That is to say, whereas the opium loses yield in the local market, the wheat appears like a tempting alternative for the Afghan agriculturists. The authorities hope that during the 2008, the opium cultures are reduced between 30 and a 50%, turning upside down it enters 57,900 and 96,500 hectares the cereal production. A so abrupt fall of the volumes of opium in the international market will take to an inevitable growth in the price of the drug, affecting a market that nothing has to do with the one of the wheat. This way, either a little one (the Earth) used like consumption for the production of two different goods (the opium and the wheat) will be distributed more for the production of that one or that presents/displays a greater price, diminishing the volume of the other, and therefore, infecting all increase to him of price.