from those costs in the United States, so the $2 and $2.50 figures may mean greater purchasing power than they

would in the United States.)

Country Year

Percentage of Population with Income Less

Percentage of Population with Income Less

Than $1.90/Day/Person

Than $3.20/Day/Person

Brazil

2019 4.6%

China

2017 0.5%

Egypt

2017 3.8%

India

2011 22.5%

Mexico

2018 1.7%

Nigeria

2018 39.1%

9.1%

5.4%

28.9%

61.7%

6.5%

71.0%

TABLE 15.2 Poverty Lines for Low-Income Countries, mid-2000s (Source: https://datatopics.worldbank.org/world-

development-indicators/themes/poverty-and-inequality.html)

Any poverty line will be somewhat arbitrary, and it is useful to have a poverty line whose basic definition does

not change much over time. If Congress voted every few years to redefine poverty, then it would be difficult to

compare rates over time. After all, would a lower poverty rate change the definition, or is it the case that people
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