Thomson Financial News - Unless technological innovations lead to substantial savings or to an increase in supply, the world economy will have to learn to live with continuously increasing commodity prices. For central banks, continuing to assume that these price increases are one-offs could put their credibility at risk. If the price of commodities, in particular food and energy which represent on average about 30 per cent of the consumption basket in the euro area, increases at a yearly rate above 2 per cent, as has been the case on average over the past 10 years, price stability can be achieved only if other prices rise on average by substantially less than 2 per cent.