Topics: Economics and Personal Finances, Socioeconomic Class. 1  Richard Fry is a senior researcher focusing on economics and education at Pew Research Center. 2  Rakesh Kochhar is an associate director of research at Pew Research Center.
In the United States, the Census Bureau determines who is poor using an economic poverty measure, by calculating official poverty estimates using a set of dollar-value thresholds, or minimum amount of income needed to meet basic needs, that vary by family size and composition.
11. Cholesterol levels are much lower than people in modern societies (averaging 125mg/dl), about the same as that for other primates, suggesting that values of this magnitude are natural for primates generally. 12. Obesity, hypertension, and diabetes are rare in hunter-gatherer societies.