This paper presents new evidence on intergenerational income and earnings mobility in the top of the distributions. Using a large dataset of matched father-son pairs in Sweden we are able to obtain results for fractions as small as 0.1 percent of the population. Overall, mobility is lower for incomes than for earnings and it appears to decrease the higher up in the distribution one goes. In the case of incomes, however, we find that mobility decreases dramatically within the top percentile of the population. Our results suggest that Sweden, well-known for its egalitarian achievements, is a society where equality of opportunity for a large majority of wage earners coexists with capitalistic dynasties.Specifically, there's almost no mobility in the top 0.1%: nearly everyone in the top 0.1% started there.
For fathers with incomes in the top 0.1 percentile, we estimate a coefficient of 0.827 with a standard error as low as 0.099. Taken at face value, this coefficient implies that a 10 percent income differential among high-income fathers is transmitted into an 8.3 percent differential among sons.From the conclusions:
... it is crucial to study small fractions in the top of the distribution to get a clear picture of income mobility. Discussing “the top” as consisting of the top 20, or top 10, or even the top 5 percent, runs the risk of missing important aspects. Indeed, our most striking results do not show until within the top percentile.What's the mechanism? Here's a Canadian study showing that while 40% of Canadian men have worked at some point for their father's employer, that rises to 70% of Canadian men whose fathers' incomes are in the top 1%. (Part of a series of blog posts on possible explanations for inequality; the author, Miles Corak, is a former labor economist at Statistics Canada.)
-- Children from low-income families have only a 1 percent chance of reaching the top 5 percent of the income distribution, versus children of the rich who have about a 22 percent chance.
-- Children born to the middle quintile of parental family income ($42,000 to $54,300) had about the same chance of ending up in a lower quintile than their parents (39.5 percent) as they did of moving to a higher quintile (36.5 percent). Their chances of attaining the top five percentiles of the income distribution were just 1.8 percent.
Further, children born into the bottom quintile of income have a 42% chance of remaining there and only a 6% chance of making it to the top quintile. For those born
in the top quintile it's exactly the opposite: 42 percent remain in the top quintile as adults, and only 6 percent fall down to the lowest income bracket.
posted by CharlieSue at 11:31 AM on November 29, 2011 [3 favorites]