Wealth tax, with the value declared by the owner as a requirement for the government defending the property rights. Valuations deemed too low (attempted tax ev

Wealth tax, with the value declared by the owner as a requirement for the government defending the property rights. Valuations deemed too low (attempted tax evasion) can be challenged by the government by calling an owner's bluff and forcing sale to the highest bidder at the price set by the second highest bidder.