Poverty is universal, and people living in developing countries face lot of challenges and unemployment, low agricultural income and many social reasons are for it. World Bank from time to time define the living standard and people living less that a certain amount fall below poverty line.
Poverty line has fallen in the last ten years in many developing countries. In Latin America, it has also come down, but the ratio of persons living below poverty line to the rest is almost same.
In many sub Sahara African countries, the number of people below poverty line is still very high and in some South Asian countries, the decline is sharp due to rapid development, however, some still lacks development.