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Progressives have a big, new, old idea to address soaring rents, and it can be summarized in three words: more public housing. I agree with two-thirds of this agenda — America certainly needs more housing. I have a problem with the "public" part.
Rep. Alexandria Ocasio-Cortez and Sen. Bernie Sanders have been pushing for renewed federal investment in public housing and to repeal the Faircloth Amendment, which prevents cities from using federal housing dollars on the construction of new publicly owned units. The research director of the Urban Institute's Land Use Lab is advising policymakers to "reconsider an obvious but long-taboo solution: building new public housing."
It's taboo, of course, because the image of existing public housing in the U.S. is deservedly terrible. Proponents like to talk instead about places such as Singapore and Vienna, two cities that have a reputation for creating high-quality, publicly owned units that accommodate middle-class and poor residents.
To the extent that this talk helps get the left to see that the affordability of housing is in large part a function of the supply of housing, it's all to the good. What the discussion is overlooking, however, are the astronomical costs of public-sector construction in the U.S.
Consider the fast-growing city of Austin, Texas, which reasonably wants to add to its mass-transit capacity with a new train line. Thanks to soaring cost projections, it has given up on the idea of digging a tunnel beneath downtown. Instead, the plan is for a 9.8-mile surface route with an average travel speed of 15 miles per hour and a projected cost of $4.5 billion.
By contrast, Milan, Italy, is nearing completion of a new line of its metro system. It's 9.3 miles long, completely underground, and is built to use fully automatic driverless trains to keep long-term operating costs down.