In 2001, a couple in western France bought a house together for 60,980 euros, then spent the next year improving it: new heating, insulation, electricity, a bay window. He ran a construction...
In 2001, a couple in western France bought a house together for 60,980 euros, then spent the next year improving it: new heating, insulation, electricity, a bay window. He ran a construction business; she was a law professor. In 2006 the marriage broke, she moved to the city where she taught, and he stayed in the house. Then the house began to change price.
In 2008, at the peak of their court battle over custody of their son, he formally offered to buy out her half based on a total value of 67,034 euros. In the lawyers' memos of 2009 and 2010 he revised his own number upward, first to 100,000 euros, then to 121,000. She countered that the house was worth 214,000. Both sides waved local real estate listings as proof. In 2011, a court-appointed legal official asked three agencies to assess the property; their ranges ran from about 152,000 to 180,000 euros, and he proposed an average of 165,833 in successive settlement drafts. Finally the husband decided he no longer wanted the house at all. In January 2013 it was sold to a stranger for 175,000 euros.
One house. Four prices, five if you count the final sale: 67,034, then 100,000, then 121,000, then 214,000, then 165,833, then 175,000. Nothing about the building changed across those years except who wanted what from whom. The only number produced by people with no stake in distorting it was the last one.
The story of Sophie Pourquerie and Emmanuel Ruffaut, told under pseudonyms like all the private families in the study, comes from The Gender of Capital: How Families Perpetuate Wealth Inequality by Celine Bessiere and Sibylle Gollac (Harvard University Press, 2023). The two French sociologists spent over twenty years inside the offices where French families divide property, and this seven-year divorce is their cleanest demonstration of a truth families everywhere prefer not to know: a shared asset does not have one true value. It has as many values as there are interests in the room, and the number moves with the temperature of the relationship.
The economics we absorb from daily life says that a thing's price is what the market will pay. That is true exactly when a thing goes to market. The whole point of a family settlement, an inheritance, a divorce, a buyout between siblings, is that the asset usually does not go to market. It moves from relative to relative inside an office, and somebody must put a number on it anyway.
Bessiere and Gollac's fieldwork shows what actually happens in that gap. In France these valuations run through the notaire, a licensed legal official with no real equivalent in American or most African systems: not a mere witness of signatures but the state-mandated professional who drafts the deeds, values the property, and advises the family, all at once. And in the notaire's office, the authors write, market value functions as nothing more than a reference, what they call a "metaprice": a theoretical price level that is unlikely ever to be met, hovering over the negotiation as a talking point while the real number is worked out among the interested parties. Their summary sentence deserves a place on the wall of every family with property: "Valuation is directly embedded in the state of the relationship between the relatives."
Watch that sentence operate in the Ruffaut-Pourquerie timeline. When the couple's war was hottest, in 2008, their numbers sat farthest apart: his 67,034 against her eventual 214,000, a gap wider than the value of the house itself. As the conflict cooled and the house became the last thing left to settle, the numbers crawled toward each other. And the moment he decided to walk away, their interests suddenly aligned, both now wanted the highest price a stranger would pay, and the market finally got to speak: 175,000.
Notice also the structure of who wants which number, because it repeats in every family on earth. The relative who will keep the asset and pay the others out wants the valuation low: every franc, shilling, or dollar shaved off the value shrinks the compensation owed. The relatives being bought out want it high, for the mirror-image reason. Neither side is lying, exactly. Each is selecting evidence, this listing rather than that one, this condition report, this hopeful or gloomy view of the roof, in the direction of its own interest. In the shadow of the market, everyone's honesty leans.
Valuation games do not stop at the price of the house. The subtler version is deciding which items enter the calculation in the first place, and Bessiere and Gollac caught one such negotiation live.
In 2014 the researchers sat in on a collaborative divorce meeting, with the couple's permission, in western France. Marc, who owned a construction company, and Isabelle, a part-time nurse, were settling the support he would pay her while the divorce proceeded. The method looked like transparency itself: a lawyer wrote every resource and expense on an easel, subtracted one from the other, and produced a single line for each spouse, "available income," which the room then set about equalizing.
But look at what each side was allowed to subtract. From his 6,050 euros a month in income, dividends, and rents, Marc deducted not only his rent and utilities but the loan, taxes, and upkeep on a secondary home only he used, and the insurance on his boat. Isabelle, living in the marital home she had inherited, at first carried its taxes herself; when the lawyers briefly shifted those taxes to Marc, he protested that he was being piled on, and she took them back. The final agreement, 1,000 euros a month in support, was sealed with a tax argument: the support would be deductible for him and taxable for her. The easel showed a balanced bottom line. The balance had been manufactured by which expenses counted as legitimate subtractions, and the counting favored him. An arrangement she had earlier held, worth 1,446 euros a month to her, quietly became one worth 1,305.
The lesson generalizes past divorce, past France, past any particular legal system. Whenever a family "runs the numbers" on a shared asset or a shared obligation, there are two layers of negotiation. The visible one is the value assigned to each item. The invisible one is the list itself: which assets, debts, expenses, contributions, and old gifts are on the sheet at all. We showed in The Accounting Runs Backward how professionals often build the whole calculation backward from a pre-agreed outcome. The Cousin easel shows the small-scale version any family can fall into around a kitchen table, with no professional and no bad faith required.
Everything above is French research; the numbers are French and stay French. What follows is our translation, ours alone, into the settings LegacyPot writes for. The authors studied no African family, but the mechanism they isolated does not check passports.
Picture the scenarios where an African family, at home or in the diaspora, must price an asset that will never see the open market. A brother buying out his sisters' shares of the family land after the father's burial. A matrimonial home divided when a marriage ends, in a legal system, and there are several across the continent, that asks what each spouse contributed. A compound in the village that one sibling occupies and the others, remitting from London or Atlanta, nominally co-own. In every case, the pattern from the Loire Valley translates directly. The occupying or purchasing relative discovers reasons the land is worth modestly: the road is bad, the title is disputed, prices in the area are soft. The bought-out relatives hear that plots half the size sold for twice as much last year. An uncle with standing but no independence produces the official-sounding figure. And the temperature of the relationships, who is grieving, who is angry, who needs money this season, moves the number more than any surveyor does. Where the diaspora is involved the distortion compounds, because the relative abroad cannot walk the boundary or sit in the meeting, and often learns the price only when the paperwork arrives, looking exact.
The danger is not that someone in your family is a thief. The Ruffauts were not thieves; they were two people whose interests had diverged, doing what diverging interests do to numbers. The danger is structural: by the time a family needs to price a shared asset, somebody already wants a particular answer, and the valuation will bend toward the want.
Here the book stops, and we go one step further, and say so plainly. Bessiere and Gollac diagnose the disease; the protocol below is ours.
The single most valuable move a family can make is to timestamp its valuations before conflict, because the Ruffaut house teaches that the same asset priced during a dispute is not the same asset. Concretely, that means three habits. First, value shared assets on a calendar, not at a crisis: once a year, or at worst once every two or three, the family records what the land, the house, the business would fetch from a stranger, and writes the number down where everyone can see it. A number recorded in peacetime carries an authority no mid-conflict estimate can match. Second, agree on the method before you ever need the answer: who values, how the valuer is chosen, and, if the day comes when one member buys out others, a mechanical rule such as three independent assessments with the average binding, which is essentially what the court-appointed official finally imposed on the Ruffauts in year six, at a cost of five years and a fortune in lawyers. Third, keep the inventory complete and shared, so the second, invisible negotiation, the one over what gets counted, has nothing left to hide: the boat insurance and the secondary home go on the sheet next to the school fees and the remittances, before anyone has a reason to leave them off.
This is standing work for the Family Council module in LegacyPot. Put the valuation rule into the council's standing agreements while relationships are warm: the calendar, the method, the buyout formula, adopted in an ordinary meeting where nobody yet knows which side of a future division they will stand on. That last point is the quiet genius of deciding early. Behind what philosophers call a veil of ignorance, not knowing whether you will one day be the buyer or the bought-out, every member has the same interest: a fair, mechanical, tamper-proof number. Wait until the interests diverge, and no such number exists.
A newlywed couple reading this can apply it the same week: agree in writing, now, how the home you are buying would be valued if life ever forced a division, and which contributions, including the unpaid ones, will count. It is not a plan for divorce, any more than a seatbelt is a plan for a crash. It is an acknowledgment that the worst time to price something you share is the moment you stop sharing it, and that the couple in western France needed seven years and six prices to learn what one paragraph, signed in their first year, would have settled in an afternoon.
One house, four prices. Your family's version of that house exists right now, unpriced, waiting. The market will eventually name its number. The only question is whether your family names one first, together, while the only thing at stake is arithmetic.