|Title||A Global Middle Class is More Promise than Reality|
|Author Name||Rakesh Kochhar, Pew Research Center|
This report examines changes in the distribution of the global population by income from 2001 to
2011. Of special interest is the change in the global middle-income population, or the global
middle class. The analysis encompasses 111 countries, which accounted for 88% of the global
population and 85% of world output in 2011. The study is among the first to make use of 2011
purchasing power parities (PPPs) that are based on the latest available benchmark estimates of
price levels around the world.