I contacted Brookings for the raw data, ran the numbers, and doubled-checked with Bosworth. For middle-class men now in their mid-60s and older, each $4,000 of extra mid-career income correlated with an extra year of life after 55. "You can’t say that making a certain amount of dollars guarantees more life,” Bosworth said. "What’s fine for you to say is that where the [per-earner] income goes up by about $4,000, that was generally associated with living another year."
This number might sound a little small to you: Is a $40,000 raise really associated with an extra decade of life? Well, hold on.
First, Bosworth is measuring average per-adult earnings within households. That means if a husband is making $100,000 and the wife isn't working at all, the man's per-person income is really more like $50,000. To "gain" an extra year, he would actually have to earn an additional $8,000 for the entire household (which, divided into male per-adult earnings, would give you our $4,000 figure).
So perhaps it's more true to say that, for today's 60-somethings from single-earner households, an $8,000 raise in their 40s correlated with an extra one year of life in their 70s. (Clearly, this correlation doesn't hold once you get into the top quintile. Billionaires don't live for 2,000 years. Yet.)
Источник: The Rich Live Longer: So How Much Money 'Buys' 1 More Year of Life?