Raj Chetty and a cast of thousands have a new paper out that looks at economic mobility. In a nutshell, it finds that mobility has increased among Black families and decreased among white families. Similarly, it has increased among the rich and declined among the poor. For more details, the New York Times has a long write-up here.
But I was sort of intrigued by this chart:
Children from higher-income families tend to have higher employment rates. This probably doesn't seem too surprising. But at the 90th percentile—that is, household income above $250,000—the trend breaks down. Kids from the very richest households work a little less than those who were merely well off.
The difference is only a few percentage points. Still, what's the cause? The most obvious possibility is that rich kids are more likely to get by on family wealth (or inheritance) and don't have to work. But while that seems plausible at very high income levels, it seems a little unlikely at $250,000.
But what other explanations are there? I'm coming up blank.