countries. In terms of population, we find that Zipf's law holds for many, but not all, countries. Contrasting the distribution … of population with the distribution of economic activity, measured by nighttime lights, across cities we shed light on …

schemes in operation. Approximately 16 per cent of the economically active population are members of medical schemes. White … beneficiaries represent 19 per cent of the total population; black beneficiaries increased by 422.1 per cent, while Whites increased …