Most couples are caught in a financial war they don't even know they are in. They assume the friction at the kitchen table is a failure of character, when it is actually a failure of geometry.
Based on a landmark 30-year longitudinal study of middle-class expenditure (1998–2027), The Marriage CPI introduces a new framework: Applied Relationship Economics. It moves beyond traditional budgeting to address the structural "Staircase" of life-stage inflation and the hidden mechanics that drive households toward the 75% Wall.
Learn to decouple the household into The Bunker (Fixed Institutional Costs) and The War Zone (Variable Daily Costs). Understand why "Headline Inflation" is a farce and how to build Economic Empathy through data.