Especially for people who think planning isn't most of the problem.
Although the real world is a lot more complicated than that, a simple scatterplot makes the point: expensive markets build little housing. Every metro where the median price per foot is over $200 has added housing at an annual rate of no more than 10 new units per 1,000 existing units since 1990. Conversely, no metro that builds a lot of housing is expensive.
So the divide widens - wealthy New Yorkers (or Londoners, for that matter) use their position to elect people who promise to build absolutely nothing anywhere near them.
The whole review - loaded with interesting stats (if you like housing and/or the US economy) is well worth a read!