Is the US income distribution getting wider?

a$.$ Support your argument making reference to microeconomic data;

explain how those data are measured and how that measure of the income

distribution is calculated.

b$.$Now present data that support a different point of view and explain

what it is that is different about those data from the measure. Why do you

prefer your measure to this second one?

Based on the data, do you think that it is getting easier or harder to

move up in the income distribution than it used to be$?$

a$.$ Support your argument making reference to data;

explain both how those data are measured and how that measure of mobility

is calculated.

b$.$ Now present data that support a different point of view and explain

what it is that is different about those data from the measure. Why do you

prefer your measure to this second one?

Raj Chetty et al show that relocation can often improve the odds of upward mobility.

a$.$ What is one locational factor $($social capital$)$ that Chetty et al show

impacts economic mobility? What factors do they control for to establish

this correlation?

b$.$ What is a second locational factor $($social capital$)$ that Chetty et al

show impacts economic mobility? What factors do they control for to

establish this correlation?