Hopefully you notice that this data offers little insight independent of: 1. absolute income 2. income mobility 3. net migration How does, for exa

Hopefully you notice that this data offers little insight independent of: 1. absolute income 2. income mobility 3. net migration How does, for example, the middle tier in Poland compare to the bottom tier in the U.S.? If our goal is to minimize envy, we don't need to know this. How do other countries compare to the U.S. in terms of net inflow of unskilled immigrants? How many people in each country move at least one quintile in their lifetime? In the U.S. it's about 25%. What is it in France?