> Land value tax: Your tax is unchanged on how much you invest in your properties. A rundown parking lot pays the same amount of tax as the next door skyscraper (encouraging development of limited, high value land, and punishing lazy speculation).
The problem with this analysis of a land value tax is that the value of the lot next to the skyscraper depends on the improvements of the skyscraper lot. This is in addition to the 'inherent' value of being downtown.
If we assume the skyscraper is the highest and best use of the land, it would then appear that both the skyscraper land owner and the parking lot land owner are being charged based on the investments made on the skyscraper lot.
Now, how are market prices determined? Overall, investors and lenders wish to maximize a return on investment. Indeed, property appraisals explicitly consider the highest and best use of a property in determining its market value.
So I am unclear how the explicit taxation of land value and improvement value that exists currently causes differences in behavior from the land value tax system you outlined.