With passage of the rescue bill, and the U.S. Treasury's upcoming actions to stabilize credit markets through a variety of tools/mechanisms, one area that is likely to experience negative consequences is the dollar.

Simply, more dollars borrowed (or more dollars printed) almost always means each dollar is worth less. Economist Richard Felson said a gradual, orderly decline in the dollar "would be expected, and is almost considered the default response, given increased U.S. government borrowing." The dollar closed Friday down about one-half cent to $1.3775 and $1.7713 versus the euro and the British pound, respectively.

Central banks monitoring dollar's level

However, leaders of the world's major industrialized economies will not, in Felson's interpretation, accept a sudden and/or inordinate decline in the dollar. "Along with increased stress on the financial system, 'brutal' currency movements, as [European Central Bank President Jean-Claude] Trichet has said, throws everything out of whack by making it hard for companies to project costs of foreign operations," Felson said. "For these reason and others I believe the major central banks will intervene to support the dollar, should the U.S. Treasury's extra borrowing or the U.S. Federal Reserve's extra lending for the bailout lead to too large or too quick of a decline in the dollar."