Built from documented writings, speeches, decisions and historical records. Council members argue from documented positions, applied to today's question.
Zoning reform is the necessary first move, but supply alone will not house the lowest-income families.
Friedman and Hayek agree that local zoning blocks supply by substituting a committee's preferences for what builders, buyers, and renters actually know. California's AB 2011 and Texas's state-level overrides show this is now politically achievable. Keynes adds that at 7 percent mortgage rates, private developers cannot close a 4 to 7 million unit gap without public counter-cyclical investment. Sen's entitlement argument, grounded in the 1943 Bengal famine, shows that aggregate supply figures can rise while the lowest-income households remain locked out by price.
The split is over sequencing and instruments. Friedman and Hayek would deregulate first and trust that cheaper land and faster permitting will eventually reach lower-income renters. Sen and Hirschman argue that waiting for trickle-down repeats a perversity argument that incumbent interests have used to block reform for decades, and that vouchers and inclusionary requirements must run alongside supply reform, not after it.
- 1Strip local governments of single-family zoning mandates, density caps, and permitting veto powers, following California AB 2011 as the legislative model.
- 2Launch counter-cyclical public construction financing now; do not wait for the Federal Reserve to lower the funds rate.
- 3Deploy housing vouchers and inclusionary requirements alongside upzoning, not sequentially after it.
Zoning codes are the primary cause of America's housing shortage.
The 4–7 million unit deficit is not a market failure. It is a regulatory failure. American cities have made it illegal to build the housing people need. Permitting backlogs, density caps, single-family zoning, and setback requirements function as a cartel protecting existing homeowners from competition. California's AB 2011 is a belated recognition of this. The correct response is to strip local governments of the power to veto housing supply. Demand-side subsidies without supply liberation simply inflate prices further.
No planning authority knows what housing to build where.
Yes, general rules can replace specific commands, and that distinction is the whole argument. A rule requiring structural safety is general and abstract. A rule prohibiting apartment buildings on a particular street is a specific command substituting a planner's preference for dispersed local knowledge. Builders, buyers, and renters possess knowledge about what is needed in a given neighborhood that no zoning board can replicate. The 1926 Standard State Zoning Enabling Act handed that dispersed knowledge to committees. The predictable result is shortage.
At 7 percent mortgage rates, private developers cannot close this gap.
The question is not whether markets should build housing. The question is whether they can, right now, under these credit conditions. When the Federal Reserve pushed the funds rate to a 23-year high in 2023, it froze the market in two directions at once. Existing owners will not sell, locked into sub-3 percent mortgages. Developers cannot finance new construction at rates that produce rents ordinary households can afford. This is a classic investment freeze driven by genuine uncertainty, not calculable risk. Counter-cyclical public investment is not a permanent substitute for markets. It restores the momentum markets have lost.
Building more units does not automatically reach the people most constrained.
Keynes is right that the credit freeze requires a public response. But the question of how many units get built is separate from the question of who can access them. A family in Los Angeles spending 60 percent of its income on rent in a deregulated market is not housing-secure, regardless of aggregate supply statistics. My entitlement approach, developed from studying the 1943 Bengal famine, shows that scarcity is often a problem of access rather than of total quantity. The households most burdened by housing costs, disproportionately low-income and minority, need demand-side instruments: vouchers, inclusionary requirements, and social housing, not only new market-rate towers.
Both sides of this debate weaponize rhetoric where they should deploy evidence.
Sen asks the right diagnostic question. When opponents of upzoning say new supply "only builds luxury units and never trickles down," that is a perversity claim. When opponents of social housing say it "crowds out private investment" or "has never worked," that is a futility claim. Before the council accepts either argument, it should ask: is this genuine analysis, or is it the rhetorical move of an incumbent interest? The irreversibility principle cuts differently here. Concrete buildings last a century. Zoning changes can be reversed in a decade. The burden of justification for permanent built form is higher than for a zoning amendment. And exit matters: the workers and renters most capable of organizing for reform are the ones housing unaffordability drives out of expensive cities first, which is why the political voice to fix this problem keeps leaving the room.