PARIS (AP) -- The head of the International Monetary Fund said Tuesday he's "not optimistic" about the world economy.
Speaking on France-Inter radio, Dominique Strauss-Kahn urged more coordination among countries as they lay out national stimulus packages and said they "need to be more robust" -- like the one in the United States.
Strauss-Kahn said many national leaders urge unity at international meetings, but change their minds when they face political pressure at home. Each country that "tries to go it alone creates problems for its neighbor," he said.
Strauss-Kahn also said many banks still have "toxic assets" on their books and will need tighter rules in the future.
But "today, the house is burning ... so we have to act as firefighters."