"Past research has found that subjective questions about an individuals' economic status do not correspond closely to measures of economic welfare based on household income or consumption. Survey respondents undoubtedly hold diverse ideas about what it means to be "poor" or "rich." Further, this...

Three billion people will be added to the world ' s population over the next 50 years and 2.8 billion people today already live on less than $2 a day-almost all in developing countries. Ensuring these people have access to productive work and a better quality of life is the core development...