The Economist: Bad urban planning is the cause of all our problems

Not literally, of course, but not far off:

http://www.economist.com/news/briefing/21647622-land-centre-pre-industri...

[mirror] http://www.skyscrapercity.com/showpost.php?p=122964975&postcount=7

Basically, The Economist says that a lot of the global problems of the past 5-10 years (inequality, economic downturns, etc.) are contributed to by increasing demand for the best urban locations, both within cities and on the global scale.