Antitrust regulations might! The "landbanking" critique of big homebuilders is contentious, but there might be something to it. (I think! I think some of the rebuttals substitute a kind of glibness for critique.) Vacancy taxation might! 1/
Are antitrust and vacancy taxation "existing"? To a degree I think. Perhaps more importantly, a public option might. 2/
Public options, as @jwmason.bsky.social seminally wrote, are a very general mechanism that can be deployed when the private sector fails to provide or organizes to restrict, price elasticity. jwmason.org/slackwire/pu... 3/