California can subsidize the building of houses even though it isn't a country, let alone one with control over monetary supply. All it has to do is borrow or

California can subsidize the building of houses even though it isn't a country, let alone one with control over monetary supply. All it has to do is borrow or collect the relevant amount in taxes and spend it on housing. FWIW, California actually does that. (Yes, California subsidizes housing at the same time that it does other things to discourage housing.)