Making it easy to construct new buildings - let's call it liberalization - isn't a binary thing. You can do it a little bit, a lot, or anywhere in-between. If y

Making it easy to construct new buildings - let's call it liberalization - isn't a binary thing. You can do it a little bit, a lot, or anywhere in-between. If you want home prices to go down, you do it a lot. If you want to stabilize things just a little bit, you do it a little. For this reason, "we don't want the prices to fall too much" doesn't work as a reason to choose banning foreigners over liberalization.