What Caused the Crisis?

Rounding up some suspects:

* Don Boudreaux on monetary policy.

* Frank Shostak on Fannie and Freddie.

* Randal O'Toole on land use regulations.

* Chris Dillow on the principal agent problem.

* Russ Roberts on perverse tax incentives.

Meanwhile, Robert Higgs disputes the idea that the credit market is "frozen," and David Cay Johnston suggests some questions for skeptical business journalists. Ilya Somin sees a slippery slope ahead.