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The distribution of wealth is one of today’s most widely discussed and controversial issues. But what
do we really know about its evolution over the long term? Do the dynamics of private capital
accumulation inevitably lead to the concentration of wealth in ever fewer hands, believed in the nineteenth century? Or do the balancing forces of growth, competition, and technological progress lead in later stages of development to reduced inequality and greater harmony
among the classes, as thought in the twentieth century? What do we really know about how wealth and income have evolved since the eighteenth century, and what lessons can we derive
from that knowledge for the century now under way?