Globally, tremendous progress has been made in reducing extreme poverty in the last 25 years. However, the number of poor remains unacceptably high, at just over 1 billion in 2011 compared with 1.2 billion in 2008, creating a widening gap between the living standards of those in the bottom 40 percent and the top 60 percent of the population. According to the recently released Global Monitoring Report, the well-being of low income households still remains below that of households in the top 60 percent directly impacting young children who are 2-3 times more likely to be malnourished than those in the highest wealth quintiles.
There is a growing perception that spatial disparities in development indicators within countries are becoming more pronounced. Sub-national data are needed to inform policy makers on such matters. However, data on the sub-national level is less frequent (curated in a global setting) because sub-national administrative areas change frequently.