Lastly, it is possible that the widespread hunger brought about by soaring prices—the FAO says a billion people will go hungry this year — may have reached a peak and the poor may be back in the market for grain again. This may sound unlikely, as traditionally poor consumers have had little influence over world food prices, but economic growth has continued in the largest emerging markets (notably China and India) and governments in much of the developing world have been expanding aid programmes for the poor, such as conditional cash-transfer schemes. That may be boosting demand; it would explain why prices of grain, which everyone eats, have been rising this year while prices of meat — the food of the rich and aspiring middle classes—have continued to fall.

Snakes in the grass

But the world food crisis of 2007-08 showed that food prices are not influenced solely, or even mainly, by cyclical factors. They soared in large part because of slow, irreversible trends: population growth; urbanisation; shifting appetites from grain to meat in developing countries. There is no sign that these trends are abating.

At the moment, the world’s population is 6.7 billion and 750m people are born each year. Though the rate of increase is declining, inertia means the total will go on rising until 2050, when the population will reach 9 billion. In Ethiopia, for example, 18m children are born every year, rising to 24m a year by 2040. That will double its headcount from 80m to 160m.

... contd.