Why do all the countries in the world not have the same poverty lines? State some suitable reasons

Why do all the countries in the world not have the same poverty lines? State some suitable reasons.

All the countries in the world do not have the same poverty line due to the following reasons :

  1. Different countries have different poverty lines because the cost of living varies from country to country.
  2. In some countries, the income required to live a decent life (above poverty line) is lower/higher than the income required to live a decent life in another country.
  3. The price of commodities and the cost incurred for accessing health and education facilities are different in different countries.