Short-selling ban in the United States in 2008 crisis didn't stop stocks from falling more than 20 percent. Critics blast short-selling ban in Europe as 'political smoke screen.'
Many investors see the innovative Apple CEO as fundamental to the company's success. If he's unwell, they think they should be told.
Some economists predict a long recession, say problem stems from greed, dishonesty.
Its intervention at Bear Stearns shows a change in attitude toward investment banks.