What about wealth inequality as the root cause of housing shortage? Even if supply is eased, the wealthy (those who have enough capital to earn passive income) will buy the extra supply and rent to the poor. The Piketty effect takes over, they invest their profit in more housing, wealth inequality continues to get worse, and while more housing exists, it owned by an increasingly small cohort. Personally I'd like to s…
Even if the wealthy did buy up extra supply to rent out, that would only mean increased supply of rentals, which would lower rents.