Faces Of Poverty

The reason for the faster economic growth in East Asia and South Asia is a result of their relative backwardness, in a phenomenon called the convergence hypothesis or the conditional convergence hypothesis. Because these economies began modernizing later than richer nations, they could benefit from simply adapting technological advances which enable higher levels of productivity that had been invented over centuries in richer nations.
Relative poverty
Relative poverty views poverty as socially defined and dependent on social context, hence relative poverty is a measure of income inequality. Usually, relative poverty is measured as the percentage of population with income less than some fixed proportion of median income. There are several other different income inequality metrics, for example the Gini coefficient or the Theil Index.