Subscribe to the BlogThe head of the International Monetary Fund has urged the US to join with other countries to reform banks.
"The question of co-ordinating the financial reform is key, and I'm afraid we're not going in that direction," Dominique Strauss-Kahn said.
His comments at the World Economic Forum in Davos come after US President Barack Obama proposed huge reforms to curb the size of banks.
Financial reform and so-called "banker bashing" has dominated Davos.
Mr Strauss-Kahn also said the only likely way there would be a "double-dip" recession - whereby economies fall back into negative growth - would be if countries pulled their stimulus spending too quickly.
Mr Obama's reform proposals - which need approval in Congress - might mean that some of the biggest banks have to be broken up.
They also include a proposed ban on retail banks using their own money in investments - known as proprietary trading.