U.S. Federal Reserve policymakers are showing very little enthusiasm for new measures to stimulate the economy.

Notes from a March 13th meeting released Tuesday also show that Fed officials are worried that recent improvements in unemployment numbers could diminish if the economy slows down again this year.

Fed Chairman Ben Bernanke said in a speech last week that the economy will have to grow faster if unemployment is expected to keep falling.

The Fed is expected to keep interest rates at their current record low at least through 2014, making it cheaper for consumers to borrow money for such major purchases as cars and houses.