Almost half of our urban population lives in slums. Urban population and slums grow due to rural migration. The poor come down to the cities because the land is unable to sustain them, or because the prospects of life there are brighter.
Economic theory tells us that the root of prosperity is productivity and that productivity depends on the division of labour and knowledge. The scope for this division and specialisation is far higher in cities. Cities therefore are prosperous. But can cities exist without slums?