The European Central Bank's signal that more stimulus is coming for Europe's economy could complicate the U.S. Federal Reserve's own deliberations at its upcoming policy meeting this week this week about when it might move in the opposite direction.
ECB President Mario Draghi caused the dollar to jump against the euro on Thursday when he said the ECB was studying new ways to fight off deflation and spur growth that may be announced as soon as December.
Seven years after the Fed cut rates to nearly zero to fight off the effects of the financial crisis, rich and developing countries around the world are waiting for it to reverse course.
The Fed had been widely expected to hike short term interest rates in September, but delayed due to turmoil in China's stock markets as the Chinese economy slowed.