Confidence in the global economy fell in September, as concern mounted about the health of the U.S. economy and global financial system following the bankruptcy of Lehman Brothers and the near bankruptcy of AIG, which prompted a U.S. Federal Reserve intervention, a new survey indicated.

The Bloomberg Professional Global Confidence Index fell to 11.3 in September from 14.1 in August among U.S. respondents. The Western European index fell to 12.6 from 12.9. Readings below 50 indicate negative sentiment.

Economist Richard Felson, who did not participate in the Bloomberg survey of 3,000 Bloomberg Terminal users, told BloggingStocks Wednesday too many financial concerns and bankruptcies are occurring over a short period for business professionals to be positive.

"Countrywide, Bear Stearns, Indymac, Freddie, Fannie, Lehman, Merrill, and now AIG. Wow, that's an awful lot for any economic system to absorb in five years, let alone one year," Felson said. "Executives and other business professionals are justifiably concerned about credit access for business operations and about declining demand due to rising unemployment. The major U.S. economic metrics are not moving in a positive direction right now and the nation needs to correct that."