We&#x27;re talking about a land value tax, not a property tax.  They&#x27;re quite different, and if you&#x27;re curious about the logic behind them then by all means read the original article, or the Wikipedia article on Georgism, both of which go into some detail.  Also, note that a land value tax would be progressive, not regressive.<p>Also, while obviously they could be wrong, if Krugman and Stiglitz think it&#x27;s a good idea, and Marx was afraid it would help the proletariat out so much that it would delay the revolution, it&#x27;s probably a sign that it&#x27;s not as <i>obviously</i> &quot;extraordinarily evil toward the bottom ~50%&quot; as you seem to imagine.