[jwommack]

Things of possible note:

* This is a survey published in 2018 with (survey) data gathered in two months of 2016

* mobility data comes from a different source for each country and they vary wildly in the period covered. Notable Italy and US data is post 2008 and the others pre 2008. Looks like there’s as much as a 12 year difference in child earning data across countries.

* sample characteristics (the income question mentioned in other posts, not clear these are used for quintiles):

* US 20k, 20-40k, 40-70k, 70k+

* UK £1.5k/mo, £1.5-2.5k/mo, £2.5-3k/mo, £3k+/mo

* FR (UK ranges but €)

* IT <€(?)1.5k/mo, 1.5-2.45k/mo, 2.45-3.35k/mo, 3.35k+/mo

* SE (SEK) <33k/mo, 33-42k/mo, 42-58k/mo, 58k+/mo

* population samples per bracket differ most between US and EU, EU comparisons are pretty similar. Nearly 2x income bracket 1 pop and sample % in EU(.27-.33) vs US (.16/.18)

* From what I’ve found 2004 (UK data) £ conversion rate to USD was ~1.9. (2012)€ was ~1.34. USD and Italy are from 2011-2012, a 2012 $ is 0.82¢ in 2004 $s. So 70k=57.6k and £3000/mo=04$68.4k=12$83.1k, €3000/mo=12$46.8k

* age dist differs non-UK EU has fewer under 30.(~.2 vs .27)

So the lowest UK rate is ~2x the lowest US rate, the US rate is a smaller portion of the pop/sample, and the US upper rate is nearly 1.5-2x of the sample as the Non-US (.39 vs .17-26). The EU top rate is ~0.56 the US top rate when converted to $ using 2012 numbers.

There’s also another important dynamic here. 2011-2012 was the European debt crisis. Italy, in particular, saw a big unemployment spike over the course of the selected years.

[the study](https://pubs.aeaweb.org/doi/pdfplus/10.1257/aer.20162015)