Poverty threshold
Poverty threshold is the minimum income level required to meet the standard of living. As determined by poverty, the criteria for the determination of poverty in developed countries (such as the United States) are significantly higher than those of the third world. Therefore, the United Nations in October 17 as the "International Day for the Eradication of Poverty", UN Secretary-General Ban Ki-moon said more than 1.2 billion people in the world is extremely poor state, relying on less than 1.25 US dollars a day living, more 2.4 billion people Less than $ 2 live, and since the 2008 financial crisis, the rich and the poor are increasingly prominent, he called on international cooperation to eliminate poverty, to avoid social tear and cause instability. How to determine the threshold of poverty often causes extensive discussion. In fact, different countries have different poverty thresholds, but in general they use a single poverty threshold to compare economic benefits. Poverty in the comparison of international poverty is often based on purchasing power parity, to avoid the poverty threshold due to changes in exchange rate. Thus "living with less than $ 1.25 a day" is interpreted as "the total cost of purchasing goods and services in less than one day in the United States.