propensity to save
And ability. The higher your income, the more of it is somewhat discretionary and the easier it is to save more.
I agree that there is almost certainly real research on this, but evidently neither of us has read it yet :-).
And ability. The higher your income, the more of it is somewhat discretionary and the easier it is to save more.
I agree that there is almost certainly real research on this, but evidently neither of us has read it yet :-).