I would say that they don't think the governmentshould put limitations on some business's no matter how much they screw up. For example (some not all) libertarians think that if a company such as Enron completley cooks the books & lies about everything that they shouldn't be punished for it
The Government should not be involved in the stock market. The London Exchange is not regulated by the British Government, they themselves fiscalize teh books. The NYSe should addop the same posture, and the unconstitutional SEC should be ended.
The Republicans in the 20s followed those policies. There was a minor problem in October 1929.
Yes, that had nothing to do with Taft-Hartley and money supply manipulations. 
Taft-Hartley?
Do you mean Smoot-Hawley?
