It's difficult to argue that this isn't at least a big part of the problem. The mathematically ideal solution may be something close to Partial Common Ownershi

It's difficult to argue that this isn't at least a big part of the problem. The mathematically ideal solution may be something close to Partial Common Ownership[0]: you self-assess what your property is worth, and you get taxed based on that number. However, that number is public, and if someone wants to buy your property at that price, you must sell to them. This system encourages optimal allocation of resources and penalizes hoarding. [0] See Glen Weyl's fantastic book "Radical Markets". Full chapter here: https://assets.press.princeton.edu/chapters/s11222.pdf https://assets.press.princeton.edu/chapters/s11222.pdf