Short Selling Might Be Good

See Selling Investors Short: The SEC refutes its own short-sale ban from the Wall Street Journal, -26-2010, page A14. The key excerpt is:

"In fact, short-sellers make for a more efficient market by allowing all points of view to be expressed in a company's stock price. The SEC came to this conclusion several years ago when it abandoned the so-called uptick rule that had prevented a short-sale unless the last movement in the stock price had been up. The idea was that the rule would serve as a brake on market panics, preventing sharp declines in stock prices, while also preventing short-sellers from manipulating the market.

After years of study and a long pilot test, the SEC staff found no evidence that the uptick rule did any of these things. Studying the 2008 crisis, when the SEC enacted outright bans on short-selling many financial stocks, the SEC staff still hasn't found evidence that such limits benefit investors."