WE HAVE WITNESSED fabulous increases in our capacity to produce wealth, advances which have brought about an ease and richness of life that would have been unimaginable a century ago. Yet poverty has worsened. Over a third of the world's people lack access to a safe, dependable water supply. Every year, millions die of diseases that have long been cured in the "developed world". Why, in spite of tremendous increases in productive power, does poverty persist and deepen?