Elle est spectaculaire aux Etats Unis - les évolutions sont du même ordre en Europe- comme le constate l'article intéressant du WSJ en lien:
"The number of U.S. firms with publicly traded stock has dropped by half in the past decade. Ten years ago, around 9,100 companies filed annual proxy statements with the Securities and Exchange Commission. Last year, roughly 6,450 did; so far in 2010, only about 4,100 have, estimates Wharton Research Data Services. The Dow Jones U.S. Total Stock Market Index tracks 4,136 stocks, down from 4,599 just a year-and-a-half ago and 5,000 at the end of 2005".
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