why do different countries use different poverty lines.

Dear Student,

Poverty line is the most suitable measure of poverty. It measures poverty on the basis of income or consumption levels of people living in a particular region. It stipulates a minimum level of income or consumption level that is required for a decent living. Those earning less than that or consuming lower than the minimum amounts are considered to be living below the poverty line. Poverty line varies with time and place, owing to the different requirements of the people living at different places and in different countries.

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The answer posted by ga.space is quite appropriate.

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