Number of US public companies halved since '97. Down to early 70s levels, when GDP was 1/3 today's 
http://marginalrevolution.com/marginalrevolution/2016/04/the-number-of-publicy-traded-firms-has-halved.html … @ATabarrok
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Number of US public companies halved since '97. Down to early 70s levels, when GDP was 1/3 today's http://marginalrevolution.com/marginalrevolution/2016/04/the-number-of-publicy-traded-firms-has-halved.html … @ATabarrok
