I submitted a question to his interview with Bigthink. The relevant segment is here, a bit more than 18 minutes in. I asked about equating affordable housing with mortgage subsidies. He said he never did that. For him, affordable housing means rental housing.

I was surprised by that answer. It made me wonder why so much of our public policy focus over the past several decades has been on bringing down mortgage interest rates and broadening access to mortgage credit.

[UPDATE: Russ Roberts has comments.]