Food and rent /are/ also subtracted from gross income to calculate discretionary income; I was highlighting those two items, not defining ‘discretionary income’, which already has a fairly well-established meaning.
Discretionary income is a complex concept that can hide many premises. I order to fully define it, you need to know how much/what quality of food, housing, and health care are discretionary. (If you would find such a classification useful, don’t try to specify each case separately; determine the rule that you use to make such choices.)
Food and rent /are/ also subtracted from gross income to calculate discretionary income; I was highlighting those two items, not defining ‘discretionary income’, which already has a fairly well-established meaning.
Discretionary income is a complex concept that can hide many premises. I order to fully define it, you need to know how much/what quality of food, housing, and health care are discretionary. (If you would find such a classification useful, don’t try to specify each case separately; determine the rule that you use to make such choices.)