International Poverty Line
The International Poverty Line (IPL) is a global metric set by the World Bank to standardize the measurement of poverty across different countries. As of June 2025, the World Bank updated the IPL to $3.00 per person per day, using 2017 Purchasing Power Parity (PPP) as a basis. This update replaced the previous threshold of $2.15 per person per day. The IPL aims to define the absolute minimum resources necessary for long-term physical well-being, typically expressed in terms of consumption goods.
History of the International Poverty Line
The concept of a global poverty line was initiated to create a universal benchmark for assessing poverty levels worldwide. The need for a standardized measurement was first recognized during the World Employment Conference in 1976, organized by the International Labour Organization. This conference introduced the 'basic needs' approach, which became foundational in developing the IPL.
Methodology
The calculation of the IPL involves several key steps and methodologies:
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Purchasing Power Parity: The IPL is expressed in PPP, which adjusts for differences in price levels between countries. By using PPP, the World Bank ensures that the poverty line reflects the same purchasing power in each country, providing a more accurate comparison of economic well-being across borders.
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Consumption Goods: The poverty line is defined in terms of the income required to meet basic consumption needs. These needs encompass essential items such as food, clothing, and shelter, which are necessary for physical survival and well-being.
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Data Collection and Surveys: To set the IPL, extensive data collection and analysis are conducted. This involves household surveys across various countries, which gather detailed information about income and expenditure patterns. The data is then adjusted for inflation and price changes over time.
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Periodic Updates: The IPL is periodically updated to reflect changes in global economic conditions and living standards. These updates consider new data, changes in the cost of living, and the effects of inflation, ensuring that the poverty line remains relevant and accurate.
Implications and Criticisms
While the IPL provides a standardized benchmark for measuring poverty, it is not without criticisms. Some argue that the line is too low and does not accurately reflect the cost of living in many countries, especially in rapidly urbanizing areas. Others suggest that the IPL oversimplifies the complexities of poverty, failing to account for non-monetary forms of deprivation such as access to education, healthcare, and social services.