【課題】 Others cite the global hike in food prices since 2006, blamed largely on record levels of financial speculation on agricultural commodities in the world's financial centres.
The argument is that the growth in the trading in the future prices of food products, on international markets, has permanently squeezed the world's poorest out of the food market.
It is a practice described by the United Nation's Special Rapporteur on the Right to Food, Jean Ziegler, as "silent mass murder".