Earlier quoted context omitted.
> It's not new affordable housing, but the people moving in to the new expensive houses are leaving their old houses, and the people who buy those are leaving their old houses, so eventually the price drops happen on the older, smaller homes at the bottom end of the market. I keep seeing this, but if the housing being vacated is in a different, less-desirable market, it's a bit tree-falling-in-the-woods for locals. I…
This analogy seems confused. If someone in Chicago moves to Seattle, then our policy options are (1) no new condo in Seattle or (2) new condo in Seattle. Under policy 1, the new buyer from Chicago must outbid locals for the fixed housing supply; they will wind up buying older housing stock, which otherwise would have gone to existing local residents. Prices go up. With policy 2, the new entrant buys the new condo and…
Are you denying that induced demand is a thing for housing? That everyone who wants to move to Seattle will move there regardless of housing prices, and no one will leave because they get squeezed out of the housing market by new arrivals? Or is there a more nuanced argument that I'm missing?
That new condo allows one more family to live in Seattle regardless, whereas if they were competing with existing stock, some family would probably have to leave. We could play a few rounds of musical chairs to prove that fact.