&gt;To me, there seems to be a pretty obvious public policy response. Institute a very high property tax, which is abated on some kind of curve according to the amount of time the owner or tenants spend living in a property, with no tax being due if the property is legitimately occupied for more than, say, ten months.<p>This punishes newcomers and rewards staying in the same property, just like California Prop 13. Have a kid and need a new place with more space? Prepare to pay punishing property taxes for that luxury. You grew up in the area and it&#x27;s time to move out? Enjoy your tax! Moving from the countryside for better employment opportunities? Tax please!<p>Because of the strong disincentive to move, there&#x27;s now going to be fewer units on the market than would otherwise be expected. House prices go up, not down, and the moving tax is likely to be regressive.<p>&gt;It might not solve the problem entirely, but at least you would reduce the effect of a diminution of housing supply that is driven by these kinds of absentee owners, and that must be driving up rents, at least.<p>In this case it will exacerbate it, just like Prop 13. It&#x27;s really a moving tax disguised as a property tax.<p>There is, however, a tax that will punish absentee owners but also not create distortions: a land value tax.<p>It&#x27;s similar to a normal property tax, except it&#x27;s on the value of the land only, not land and improvements or improvements only. A single family home on a particular lot is taxed the same as a skyscraper or an empty lot sitting on that same lot.<p>This punishes land speculators and NIMBY types, cannot be passed on in rent (normally taxes decrease the supply somewhat, so some of the tax can be passed on, but land is fixed in value and a tax cannot reduce its supply), and does not punish building like a standard property tax does. It allows cities to capture value from infrastructure improvements, such as running a new transit line.<p>The practical concerns are similar to a standard property tax: how do we do assessments? The great thing about it is that land is easier to compare than buildings are.