Investors edgy ahead of Bernanke speech

By Jeremy Gaunt, Reuters European Investment Correspondent World stocks were generally weaker on Wednesday and Wall Street looked set for losses as investors shuffled positions ahead of a highly anticipated Jackson Hole

Forex traders eye Bernanke speech

. Forex traders will be glued to their screens on Friday waiting to hear what Fed Chairman Ben Bernanke will say at his speech at an annual central bank conference in Jackson