The ebb and flow of world trade of grains and oilseeds is one of the more important determinants of domestic prices in major producing and exporting countries, and it often seems to be the most significant factor in ascertaining values.The production of grains has always been widespread, occurring wherever there was a human population, arable land and sufficient water since pre-historic times. Oilseeds and their products are relative newcomers by comparison, although they have a long history of use in Asia. Their production/usage became more common elsewhere after World War II, however, and really began to flourish when increasingly concentrated livestock and poultry production created a demand for the high protein residual meal left after...