Poverty
The poverty line threshold of $1.90 per day, as set by the World Bank, is controversial. Each nation has its own threshold for absolute poverty line; in the United States, for example, the absolute poverty line was US$15.15 per day in 2010 (US$22,000 per year for a family of four), while in India it was US$1.0 per day and in China the absolute poverty line was US$0.55 per day, each on PPP basis in 2010. These different poverty lines make data comparison between each nation's official reports qualitatively difficult. Some scholars argue that the World Bank method sets the bar too high, others argue it is low. Still others suggest that poverty line misleads as it measures everyone below the poverty line the same, when in reality someone living on $1.20 per day is in a different state of poverty than someone living on $0.20 per day. In other words, the depth and intensity of poverty varies across the world and in any regional populations, and $1.25 per day poverty line and head counts are inadequate measures.
Basic needs
In the United States, the equivalent measures are called "self-sufficiency standards" or "living income standards". Unlike the federal poverty level (FPL), which is calculated from a single, national variable (cost of food), these models assume that different households have different needs, based on factors such as the number and age of children in the household, and the cost of housing in the particular area (usually a county) that they live in. In keeping with the principles of basic needs, these measurements do not include any extra money for entertainment, savings, debt payment, or unusual or avoidable expenses, such as vehicle repairs. It assumes that adults will be working and pay taxes; it also includes costs of all government, charitable, and family subsidies, such as free medical care through Medicaid, free food from the USDA food stamps program or a food bank, or free childcare from a grandparent. All of these costs are ignored by the official FPL measurement, but included in a self-sufficiency standard.