Warren Buffett, the billionaire who urged Congress in 2009 to guard against inflation, said investors should avoid long-term fixed-income bets in U.S. dollars because the currency's purchasing power will decline.

"I would recommend against buying long-term fixed-dollar investments," Buffett, chairman and chief executive officer of Berkshire Hathaway Inc. (BRK/A), said today in New Delhi. "If you ask me if the U.S. dollar is going to hold its purchasing power fully at the level of 2011, 5 years, 10 years or 20 years from now, I would tell you it will not."

David Fuller's view This is not the first time that the Oracle of Omaha has expressed this view. Veteran subscribers will know that we agree and it is one of the many themes discussed in our 'Big Picture, Long-Term Outlook' audios each Friday