Consider a thought experiment that Milton Friedman would have appreciated: two neighbors both want something. One wants to build an apartment building on his own land; the other wants to stop him without paying a cent. Under current zoning law, the second neighbor — armed with nothing but a zoning board meeting — usually wins. The cost of his victory is borne entirely by the strangers who needed a home and never found one.
This asymmetry is the economic engine of NIMBYism ("Not In My Backyard"), and it is extracting an enormous and largely invisible toll on American housing affordability. When we ask why the United States is short 3.7 million housing units as of Q3 2024, the honest answer points not just to high construction costs or interest rates, but to the organized, well-resourced political opposition of incumbent homeowners who benefit privately from housing scarcity.
The Quantified Cost of "No"
A 2022 joint survey by the National Association of Home Builders (NAHB) and the National Multifamily Housing Council (NMHC) — the most comprehensive study of its kind — found that 74.5% of multifamily developers encountered NIMBY opposition during their projects. The financial consequences were concrete: that opposition added an average of 5.6% to total development costs and delayed housing delivery by an average of 7.4 months.
Those may sound like modest percentages. They are not. On a typical multifamily project costing $30 million to develop, 5.6% represents $1.68 million in added costs — costs that translate directly into higher rents. And 7.4 months of construction delay at prevailing carrying costs further compounds the financial damage, discouraging developers from attempting projects at all in highly contentious markets.
The same NAHB/NMHC survey found that 47.9% of multifamily developers actively avoid building in jurisdictions with inclusionary zoning requirements, and 87.5% will not build in jurisdictions with rent control. NIMBY opposition functions as an informal, extralegal version of the same deterrent: even when a project clears legal hurdles, the reputational and financial cost of community warfare causes developers to self-censor before filing a permit.
Sowell's Insight: Concentrated Benefits, Dispersed Costs
Thomas Sowell's framework from Basic Economics is almost surgical in its precision here. NIMBY politics exemplify what economists call the "concentrated benefits, dispersed costs" problem. The homeowner opposing a new apartment complex stands to gain substantially and tangibly: higher property values, preserved neighborhood character, no new traffic on their block. The people harmed — future tenants priced out of the market, workers unable to move near high-productivity jobs — are diffuse, anonymous, and unrepresented at the zoning board hearing.
This structural imbalance gives incumbent homeowners enormous leverage to impose costs on strangers through the political process at zero private expense. Friedrich Hayek recognized precisely this dynamic in his analysis of how localized interests capture regulatory bodies: the body ostensibly serving the public interest becomes an instrument for organized private advantage. A city council that blocks apartments to please its vocal homeowner constituency is performing Hayekian regulatory capture in its most quotidian form.
The Macroeconomic Damage Is Staggering
The damage from NIMBY-driven housing restrictions is not merely local — it operates as a brake on the entire national economy. A landmark 2019 study by economists Chang-Tai Hsieh and Enrico Moretti, published in the American Economic Journal: Macroeconomics, quantified the aggregate cost of housing supply constraints in high-productivity cities like San Francisco and New York. Their headline finding: housing restrictions in just three major metros — New York, San Jose, and San Francisco — lowered aggregate US growth by an estimated 36% over the period from 1964 to 2009. Under alternative mobility assumptions, their internal estimates ranged from 3.7% to 8.9%. The paper's authors and subsequent reviewers have noted the true figures are likely at the higher end of that range or beyond, owing to conservative modeling assumptions.
The mechanism is labor misallocation. Workers who would otherwise relocate to high-productivity cities — where their output and wages would be greater — are blocked by housing costs driven up by artificial supply constraints. The nation loses the output those workers would have generated. As Hsieh and Moretti note, "misallocation arises because high-productivity cities like New York and the San Francisco Bay Area have adopted stringent restrictions to new housing supply, effectively limiting the number of workers who have access to such high productivity."
Harvard economists Edward Glaeser and Joseph Gyourko, in their 2018 Journal of Economic Perspectives analysis of housing supply economics, further documented that in cities where zoning restrictions are most binding, the gap between housing prices and construction costs is largest — direct evidence that artificial supply restriction, not construction costs, is the primary driver of unaffordability in expensive markets.
The Perverse Incentive Structure
One of the most uncomfortable truths in housing economics is that most homeowners benefit financially from housing scarcity. When new supply is blocked, the value of existing homes rises. A homeowner who purchased in San Francisco in 1995 for $350,000 and now sits on a $1.8 million asset has a powerful financial incentive to oppose any development that might dampen appreciation — regardless of how that opposition affects the broader community.
This is not a moral indictment of individual homeowners. It is a structural critique of a system that gives private parties the legal authority to veto market transactions that do not involve them. When a landowner sells to a developer and that developer builds apartments, a third party — the neighbor — is granted standing to block the transaction entirely. This is not a feature of free markets. It is a feature of political markets, and like all political markets, it distributes outcomes according to political power rather than economic merit.
The result is that the housing market in the United States's most productive cities increasingly resembles a cartel. Entry is restricted. Prices are elevated. The incumbents prosper. New entrants — in this case, new residents and new housing — are systematically excluded.
What Market Reform Looks Like
The data from cities that have loosened NIMBY constraints offers a natural experiment. Minneapolis enacted sweeping zoning reform through its 2040 Comprehensive Plan — eliminating single-family zoning citywide and reducing parking minimums. The results are instructive. The Federal Reserve Bank of Minneapolis developed a data tool specifically to track the plan's impacts, and measured meaningful gains in small multifamily permitting in the years following implementation. Rents in Minneapolis grew more slowly than in comparable Midwestern cities during the period. Pew Research's analysis identified the Minneapolis model as a viable national blueprint — particularly its approach of overriding local NIMBYism through a citywide comprehensive plan that removed by-right vetoes for neighbors.
Montana's 2023 legislative package — which required cities above 5,000 residents to permit duplexes in single-family zones and streamlined ADU (accessory dwelling unit) approvals — was similarly a state-level override of local NIMBY veto power. Montana's "Housing Act" package demonstrated that democratic majorities at the state level can and should constrain anti-competitive local land-use cartels.
The free-market solution to NIMBYism is not complicated. It requires recognizing that housing is a market good, that supply restrictions raise prices, and that granting third-party veto power over private land transactions is a form of government intervention — not a defense of property rights, but an infringement on them. Property rights, properly understood, include the right to develop one's land to its highest and best use consistent with legitimate harm-prevention principles. They do not include a neighbor's right to freeze the neighborhood in perpetuity.
The Bottom Line
America is short 3.7 million housing units. That gap does not arise from insufficient desire to build — construction employment and building material industries stand ready to supply. It arises from a political economy in which those who already own homes systematically use regulatory power to prevent those who do not from obtaining them.
As Friedman observed about so many regulatory regimes, the people protected by this system present it as public-spirited concern for neighborhood character, traffic, or school capacity. The data reveal something more straightforward: a transfer of wealth from future residents to current ones, enforced by the state, at a macroeconomic cost measured in trillions of dollars and millions of families who cannot find an affordable place to live.
The cure is the same as for any artificially constructed shortage: remove the barriers to supply. Let the market build.