Yes, household income is typically used because you only pay rent once per household, not twice. You typically only have one set of expensive appliances, furnit

Yes, household income is typically used because you only pay rent once per household, not twice. You typically only have one set of expensive appliances, furniture, etc per household, not 2. Also, household size has historically fallen -> https://twitter.com/Mark_J_Perry/status/1307408040686235650 https://twitter.com/Mark_J_Perry/status/1307408040686235650 You can also just ignore dual-income households and look at the data for single-income households, it's essentially the same (if not better) -> https://twitter.com/ernietedeschi/status/1308775197311467520 https://twitter.com/ernietedeschi/status/1308775197311467520