- 10% live in extreme poverty, and 2/3 of the world live at under $10 per day 
- About 1/2 the world population lives on less than $5.50/day - defined as 'struggling to meet basic needs' - 
- Start with the founding metric by Mollie Orshansky 
- Global poverty line is under $2/day. 
- US poverty line is about $1k/month. $500 in American Samoa.