Functioning?
Add up expenses and calculate each one's share according to his income. Each partner manages the rest of his money individually.
Values prioritized?
Equity, respect for each one's financial capacity
Disadvantages?
It may seem unfair for the person with the highest income. There may also be inequality on the remaining personal money.
Budget Management Mode as a couple #3: The "Lifestyle" functioning
The idea is that partners have the same amount remaining after paying common expenses (variation of the prorata mode)
For whom?
This mode of functioning is ideal for partners wishing to have a similar lifestyle.
Functioning?
After adding up expenses, you make sure you have the same amount left.
Values prioritized?
Equity and Autonomy
Disadvantages?
This way of functioning can be perceived as inequitable because the person with the highest income takes charge of a larger part of expenses.
Budget Management Mode as a couple #4: The "Common Pot" functioning
Money is pooled, no matter the income of each.