I'd also add that the best source on all things related to land policy is the Lincoln Institute. This is a great study about declining densities (even in the ag

I'd also add that the best source on all things related to land policy is the Lincoln Institute. This is a great study about declining densities (even in the age of condos) http://www.lincolninst.edu/publications/working-papers/persistent-decline-urban-densities http://www.lincolninst.edu/publications/working-papers/persi... This is why land really does remain crucial. I'm not sure why everyone thinks that tall condos means we aren't reliant on land. Tall condos have accomplished basically nothing, and our cities now are much less dense than they were even in the middle ages.