I keep coming back to a line a village man reportedly gave a young researcher decades ago, something close to this: someday you will understand that it is sometimes better to lie. It stops you from hurting people, does no harm, and might even help them. That is not a slogan. It is a warning about how households actually behave when outsiders arrive with a plan. The man was not talking about a city budget. He was talking about free contraception handed out in rural India, accepted with a smile, and then mostly left unused. Politeness looked like consent. The birth rate barely moved. I have found that this small social fact explains more failed programs than most white papers ever will.
Zohran Mamdani now sits over a city that wants cheaper groceries, harder rent rules, and a louder claim on the means of production. Before any of that, his father, Mahmood Mamdani, spent years listening to people who already knew why their families were large. The elder work is drier, narrower, and, in my view, more useful than a campaign promise. It does not hand a mayor a slogan. It hands him a method: ask what the household is optimizing before you rewrite the price.
The Lesson Hidden in a Father’s Field Notes
In 1972, Mahmood Mamdani published The Myth of Population Control, a study of family, caste, and class in an Indian village. The claim was blunt for its time. The famous population scare was wrong, and the people living inside the scare understood their own incentives better than the experts counting heads from a distance. That book did not make him a free-market economist. He has spent much of his career on colonialism and political power. The overlap with market-minded critics of the same scare was narrow and accidental. Both sides noticed that a model can be elegant and still miss the room it claims to describe.
The son’s politics and the father’s fieldwork do not have to agree for the lesson to travel. A city is not a Punjab village. Rent, transit, and grocery margins are not the same problem as old-age security on a small farm. Still, the error pattern is familiar. Planners see an outcome they dislike, treat it as a cause, and try to force the surface number to look like the number in a richer place. Households nod, take the gift, and keep doing what keeps them afloat.
Why the Overpopulation Story Felt So Convincing
The late 1960s loved a simple catastrophe. A widely read book argued that the world was already too full, that famine was close, and that even a rich island nation would buckle from food shortage before the year 2000. The tone was confident. The charts looked urgent. Aid agencies built population desks. Development, in that frame, required fewer births first and growth later, as if fertility were a dial a ministry could turn.
I do not think the fear was fake. Crowded wards, thin harvests, and visible poverty make a headcount theory feel obvious. You walk a lane, count children, and the sentence writes itself: they are poor because there are too many of them. The sentence is tidy. It is also, on the evidence that followed, mostly backward.
To talk of overpopulation, in that older frame, was to tell people they were poor because they were too many. Fieldwork suggested the reverse. People were not poor because their families were large. They had large families because they were poor.
That reversal is the whole argument, and it is easy to rush past. If children are a cost center in a rich city with pensions, schools, and a labor market that pays adults, fewer children can look like a rational upgrade. If children are the labor force, the insurance policy, and the only reliable claim on care when knees give out, fewer children look like a bet against your own old age. Same word, family size, two different balance sheets.
International bodies leaned into the first balance sheet. Early population awards went to governments later known for hard campaigns of sterilization and compulsory abortion, alongside grim rates of sex-selective harm. A Nobel-winning economist walked away from an advisory role over those awards and called the choice a travesty. That protest mattered because it came from inside the development conversation, not from a slogan shop. Relatively few academics pushed back in public. Among them were economists who trusted revealed behavior more than targets, and an anthropologist willing to sit in the village long enough to hear the polite lie.
A Study That Measured Politeness Instead of Fertility
The case that anchored the book was the Khanna study, an early attempt, backed by a major foundation, to test whether handing out birth control in rural India would cut births. On paper the launch looked like a win. Something like nine in ten local people said they favored free contraception. Acceptance is the metric consultants love. It photographs well. It does not tell you what happens after the visitor leaves.
Birth rates did not fall in the way the design expected. The gap between the smile and the statistic is where the book earns its keep. Villagers took the methods to be courteous. Refusing a gift from an educated outsider can feel rude, even risky. Accepting it costs little if you never use it. One explanation, given almost gently, was that a lie can protect the guest and the host at the same time.
Perhaps the most interesting aspect is how modern this still sounds. Surveys reward the answer the interviewer wants. Apps reward the tap. A city consultation can fill a room with people who “support” a program because disagreement feels like a scene. Then usage, compliance, or the birth rate, or the rent roll, tells a different story. Politeness is not data. It is a social skill.
- Stated support can be a courtesy, not a plan.
- Free distribution measures access, not desire to change a life strategy.
- A target that ignores old-age security will be nodded at and worked around.
- Field interviews beat a dashboard when the behavior is private.
None of this requires romance about village life. People can be wrong about their own prospects. They can also be right about constraints a visitor cannot see: who owns the plot, who gets the wage, which child can be spared for school, which illness wipes a season. The Khanna commissioners, by the account in the book, did not really grasp how different that context was from the places where smaller families had already become normal.
Children as Insurance, Not a Mistake
One interview still carries the point better than a model. A poor man in the study area laughed at the idea that his children made him poor. Without his sons, he said, he would not have half the prosperity he had, and he did not know what would happen to him and their mother when they were too old to work. That is not ideology. That is a household budget spoken out loud.
Think of it the way a saver in a rich city thinks about a retirement account. Telling him he would be richer if he stopped contributing is nonsense on his terms. Telling a farm household they would be richer without the children who haul, weed, watch younger siblings, and later send money home is the same kind of nonsense. The asset just looks like a person.
I have sat with versions of this argument in much milder form, talking with relatives who grew up where a spare pair of hands was the difference between a finished harvest and a spoiled one. They do not describe children as a lifestyle brand. They describe them as continuity. You can dislike the tradeoffs, especially for girls who absorb unpaid care, and still admit the incentive is real. Moral discomfort does not delete a constraint.
| Household setting | What a child often provides | What planners often assume |
| Rural poor, weak pensions | Labor now, care later, status in the kin network | A cost that should be cut to copy rich-country fertility |
| Urban working poor | Shared rent, informal care, a hedge if one wage fails | A crowding problem solved by price rules alone |
| Secure middle income | Time, schooling costs, delayed earnings | The “normal” family the policy wants everyone else to match |
The third row is where a lot of development advice quietly lives. It treats the small family as a cause of prosperity rather than a result of it. Once wages rise, child survival rises, schooling pays, and a public or private pension exists, the calculus shifts on its own. Forcing the shift early, without those supports, asks people to volunteer for a risk they cannot insure.
When Planners Copy Rich-Country Outcomes
Distant offices liked what later got called a population approach to development. Notice the order of the words. Population first, development as the prize for hitting the demographic look of already-rich countries. Lower birth rates were treated as an input you could import, like a turbine or a port crane. The village evidence said the input was an output. People reduced births when the economic reason for large broods weakened, not because a pamphlet told them they were the problem.
Reviews of those programs were plain. Attitudes, contraceptive practice, and average fertility often did not move in a major way. Even if they had, it is far from clear the growth prize would have arrived. A well-known development economist, looking back across twentieth-century “panaceas,” put population control on the same shelf as other fixes that were supposed to unlock growth by twisting one variable. The general reading among economists who studied the numbers was awkward for the campaigners: little clear evidence that population growth, by itself, raised or lowered growth in income per person.
The timing makes the claim sharper. From the 1960s to the 1990s, population growth in poorer countries slowed by roughly half a percentage point. Over the same stretch, per-person economic growth in that broad group also slowed. Across countries, success at braking population growth did not line up cleanly with success at lifting income per head. If the lever worked the way the posters said, that pattern should have looked kinder.
A rough reading of the late twentieth century: Population growth in poorer countries: down about 0.5 point Per-person growth over the same decades: also slower Cross-country match between the two “successes”: weak Human cost of coercion: not weak
This is not an argument that family size never matters. Extremely high dependency ratios can strain schools and clinics. Very low fertility later strains pension systems, a problem several rich countries are now mumbling about after decades of treating fewer births as pure progress. The point is narrower. You cannot engineer prosperity by commanding the birth number, and you cannot treat a household strategy as a bug in the software.
The Record of Coercion and Thin Results
Where persuasion failed, some states reached for force. India and China drew the headlines because the scale was vast: aggressive sterilization drives, compulsory abortion, and sex ratios bent by infanticide and selective abortion. The awards and the methods were not a secret at the time. People inside the aid world objected. The campaigns continued anyway, because the target had become a moral score.
The harm was not confined to two capitals. Documented campaigns of secretive or coercive sterilization show up in Mexico, Chile, Bolivia, Peru, Indonesia, Bangladesh, Namibia, and also in Canada and the United States. Some of that history is old. Some of it is uncomfortably recent. A program can wear a public-health coat and still strip people of a choice that belongs to them.
Set the cruelty next to the scoreboard. Coercive policy harmed millions. The societal payoff on the original promise was thin: no reliable extra reduction in population growth beyond what development itself was already doing in many places, and no clear boost to economic growth that you can pin on the campaigns. That is a terrible trade. It is also a template. When a number becomes the goal, the people inside the number become the residue.
What City Hall Can Misread in the Same Way
New York is not Manupur. Nobody serious should pretend a rent rule is a sterilization drive. The analogy is about method, not magnitude. A mayor who treats the city as one large equation will repeat the shape of the mistake even if the tools are subsidies, controls, and public ownership talk rather than clinic quotas.
Cheap groceries sound like mercy. In a city where food takes a painful share of a thin paycheck, the desire is obvious. The hard part is the path. Prices fall in a lasting way when supply is easier, competition is real, waste is lower, and the cost of the last mile is not swollen by rules that only large incumbents can absorb. A political price, announced as a gift, often shifts the cost into shortages, lower quality, or a quiet exit by the shops that cannot carry it. Households then do what the Indian villagers did with unused contraceptives. They adapt around the official story.
Rent control has a longer paper trail, and a more domestic one. Tight caps can protect a sitting tenant. They also reduce the incentive to maintain, to build, and to move. The protected unit becomes a prize you do not give up, even when the job is in another borough. Newcomers, younger couples, and anyone without the right paperwork meet a thinner market and a higher unofficial price. I have watched friends treat a regulated lease like a family heirloom. Rational for them. Rough on the city that still has to house the next arrival.
Economic prosperity is not engineered from the top by changing a few parameters, as if the city were one large equation. Households already have an equation. It includes risk, kin, and the cost of being wrong.
Talk of seizing the means of production lands in the same family of errors, just with a louder verb. Ownership can be public, private, cooperative, or messy. What does not survive contact with a real block is the belief that a central office knows the local constraint better than the people who live inside it. A grocer knows which distributor ghosts them. A superintendent knows which pipe fails every January. A couple deciding whether to have a second child in a one-bedroom knows the rent trajectory better than a press release does.
Household Incentives Inside a High-Cost City
Bring the father’s question into the son’s city without forcing the costume. Why do people form the households they form? In expensive urban markets, family size economics did not vanish. They changed clothes. Children are less often field labor and more often a bet on time, childcare prices, and whether one income can cover a stroller and a lease. Couples delay, double up with relatives, or leave. Those are fertility and location choices made under constraint, not a failure of messaging.
A city that wants more families to stay has to look at the actual budget, not the preferred slogan. Childcare that costs as much as rent is a population policy whether anyone calls it that. A housing stock that does not add bedrooms is a population policy. Long commutes that steal the evening are a population policy. You can dislike that framing and still use it. It forces the question Mamdani senior asked: what problem is the household solving?
- Map the constraint the household actually names, not the one the platform prefers.
- Separate a transfer that helps a person from a price rule that hides a shortage.
- Ask who exits when the rule binds: the builder, the shop, the young tenant, the second child.
- Treat stated support in a hearing as politeness until behavior confirms it.
- Judge a program by use and side effects, not by the launch photo.
Step four is the Khanna step, and it is the one political teams skip. People will tell a mayor’s staff they love cheaper milk. They will also drive to the next county if the shelf is empty, or pay a bodega in cash for the brand that vanished from the official list. The lie, if you want to call it that, is often just conflict avoidance. It still wrecks the metric.
Local Knowledge Is Not a Vibe
The rural Indians in that study understood their own lives in a way visiting developers did not. That sentence can sound soft, like a plea to “listen to community.” It is stricter than that. Local knowledge is specific: who inherits, who migrates, which caste lane controls the well, what a son is worth when the state pension is a rumor. A city has its own version. Super-block zoning, union rules, delivery apps, shelter policy, and the informal sublet all sit in the same apartment sometimes. A single rent number cannot describe that stack.
Economists who studied growth fads reached a similar humility from the other door. Twentieth-century development collected panaceas: capital injections, education drives, population brakes, industrial plans. Each had a season of certainty. Each left a residue of projects that looked funded and behaved poorly. The elusive part of growth was not a missing input so much as a missing respect for why people already do what they do.
In my experience, the officials who last are the ones who can say “we might be measuring courtesy.” It is an unglamorous skill. It does not trend. It does stop a city from celebrating a pilot that villagers, or tenants, accepted only to end the meeting.
A Fair Reading of the Father, Without Drafting Him
None of this drafts Mahmood Mamdani into his son’s coalition or into its opposition. The book is an anthropological argument about a failed population project, written by someone deeply critical of colonial power. Using it as a club for one municipal faction would be another kind of rudeness, the educated visitor again, this time borrowing a life’s work for a headline.
What travels is the method. Sit with the person whose behavior you want to change until their reason is boring and concrete. Do not stop at the answer that flatters the program. If they want sons because daughters leave and the state will not feed them at seventy, your pamphlet about modern family norms is not a counterargument. It is a change of subject. If tenants cling to a below-market lease because the alternative is a two-hour commute, your speech about fairness is not a supply plan. It is a change of subject.
There is a family lesson in the narrow sense too, which is why the household sits at the center of this story. Couples and kin networks are economic units long before they are symbols. Decisions about children, caregiving, and who sleeps in the extra room are negotiated under prices. A city government that ignores that negotiation will keep being surprised by “noncompliance,” which is often just a couple doing math.
What Humility Would Look Like in Practice
Humility is not paralysis. A mayor can still subsidize a household directly, fund a clinic, speed a permit, or prosecute a fraud. The difference is whether the tool assumes the office knows the optimal family, the optimal grocer margin, and the optimal rent, or whether it assumes those emerge from constraints you should first describe honestly.
A practical version, stripped of theater, might look like this. Publish the constraint, not just the promise. If groceries are expensive because of theft, rent, and delivery rules, say so before you cap a price. If housing is scarce because adding a unit takes years, say so before you freeze the existing stock and call it justice. If families are smaller than some voters wish, ask about childcare and space before you lecture about values. The father’s villagers were not short on values. They were long on risk.
Policy check: stated support + actual use + who exits + what risk the household was hedging = whether the program was real.That little formula is intentionally plain. It would have flagged Khanna early. It would flag a grocery pilot that clears the shelf by Thursday. It would flag a rent regime that protects incumbents and pushes the next couple into an illegal sublet. Short formulas are not science. They are reminders you can carry into a meeting where everyone wants the launch to count as the result.
The England That Did Not Collapse
One prediction from the population scare was specific enough to age in public. A rich country, England, was supposed to be in serious trouble from food shortage before 2000. It was not. Agricultural yields rose. Trade moved calories. The bomb, as a calendar event, did not go off. Failed predictions do not prove every worry was silly. They do prove that confidence is not evidence, and that a generation of policy was built on a clock that ran out without the famine it promised.
Cities collect their own clocks. A rent emergency that is declared permanent. A grocery crisis that is always one council vote from being solved. A production system that will work once the right office holds the levers. Some pressure is real. The permanent version of the story is how programs avoid a review. The village study is a review that arrived before the official story was ready to hear it.
I still find the polite lie the most human part. People did not want to embarrass the guests who had come to save them. They took the gift. They went on feeding the strategy that kept their parents from destitution. If a New York program meets the same smile, the adult response is not to call the public ungrateful. It is to ask what risk the smile is protecting.
A Son’s City and a Father’s Question
Zohran Mamdani can reject his father’s scholarly lane and still use the question. Why does this household do the thing my model calls irrational? Until that answer is specific, a plan to cheapen food, freeze rent, or claim the works is a guess with a budget. Guesses spend other people’s room to be wrong.
The elder Mamdani did not win the 1970s argument in the popular press. The scare sold better. History was less kind to the scare than the bestseller lists were. Fertility fell in many places as incomes and child survival rose, which is what the “large families because they are poor” line expected. Coercive shortcuts left scars without a clean growth miracle attached. That is a usable inheritance for anyone who now writes rules for other people’s kitchens and leases.
Couple and family life in a costly city will keep producing decisions that look stubborn from a podium. Two incomes, one child, a parent on the couch, a lease nobody dares to leave. Those are not vibes. They are household incentives under prices the city partly sets and partly inherits. A government that wants those decisions to change has to change the constraint, not the press release. The villagers already explained the difference. It is sometimes better, they said, to tell the visitor what he hopes to hear. The birth rate, the rent roll, and the grocery shelf will tell the rest.
