In: Economics
Use the concept of poverty line to distinguish between persons who are absolutely poor and persons who are relatively poor
The absolute poverty is the measure of a global povery level, irrespective of geographical regions. It depicts the minimum level of income, below which there exists threats to survival. The relative poverty, however, measure of poverty levels with respect to the geographical regions, and deptics the minimum level of income, below which the people are left behind of economic growth, prosperity, and are considered outside of the society. Relative poverty may or may not be a threat to survival, as it depends on the income levels of the region, usually a country.
The absolute poverty line would be the same/constant over time, adjusting for PPP/inflation. It doesn't change even if the income levels of an area or of the whole globe rises, as the measure of critical needs to survival are more or less equal throughout the globe. On the other hand, relative poverty line is setted as a critical minimum percentage of the income levels in the regions, usually countries. In that sense, whereas absolute income doesn't change over time and space, the relative povery changes in both terms. If income of a nation rises, the relative povery line rises with it. Hence, the person who are absolutely poor, they might be seen as almost the same condition throughout the globe, struggling for survival. But, person who are relatively poor, differes from places to places, who may or may not strive for survival, but are surely an outcast of society, along with its growth and priviledges (health, education, law and justice, etc).