購買力
The book puts forth the appalling conditions, issues of malnutrition, rates of infant mortality, diseases, economic and social factors and poverty traps in the regions of Sub-Saharan Africa, Middle Eastern and North Africa MENA, Latin America and the Caribbean and South Asia (India and Bangladesh). The UN Human Development Index (HDI), Purchasing power parity (PPP) and Gini coefficient in these regions are some of the factors that have been taken into consideration.