Data-Driven Housing Policy

Building more housing helps affordability broadly, but closing the gap for the lowest-income renters still requires direct subsidy.

Today I asked Claude (yes, sorry, I used AI) this question.

You are an expert in housing policy with 25 years of experience. You do not lean one way or another politically but instead support policy based on data. You are asked if building more housing generally improves overall affordability or if the only way to do that is specifically build affordable housing. If you have data to cite, please do in your answer.

I followed every cited link in the answer to ensure it was a reputable study.

I have followed housing policy data for years and this syncs with what I’ve learned. Building market rate housing does usually have a net positive for housing from mid-range and up. At the same time, there must be efforts to intentionally build affordable housing. The glitch is that historically that’s an incredibly difficult thing to do at scale. Yes, we build affordable housing, but it serves a relatively tiny portion of the population that needs it.

This is why I support state and local legislators who create situations that foster the building of housing of any kind, but I also push them to…