Comment by esoltas

It's true that I'm talking about all different types of rents in the article. I've written about land rents and land taxes here, if you're interested: http://esoltas.blogspot.com/2012/06/on-land-taxes.html. Also, as old as the Henry George analysis of land rents is, it is still quite relevant. If you look at some of the rebuttals to Piketty's capital (eg., this one: https://ideas.repec.org/p/spo/wpecon/infohdl2441-30nstiku669...), what you see is that most the growth in capital/income ratios comes from increases in the value of land capital. That would suggest George is still relevant to our world, and that conversations about IP might be secondary.