Normally in January and February cereal and grain prices in West Africa are driven down as harvests from the year before start hitting the markets.
But production of cereals was low across the region in 2007 because of a late start and early end to the rainy season, which affected production of millet, sorghum and maize. Analysts say traders are seeking to maximise profit by hoarding stocks, because they know the low production will yield higher prices.