Bernanke says do the floating exchange rate of the dollar, it does not have to coordinate to closely with foreign central banks. This crisis has been different, requiring closer cooperation. He cites the global rate cut in October at the depth of the financial crisis as well as swap lines with other central banks.
This crisis has been bad for the nations debt pushing debt to GDP ratios much higher than in recent years. It is important to return to fiscal balance in the medium and long-term.
The dollar remains the dominant reserve currency and will remain so in the near-term. It is important that the dollar remain strong and a strong economy is they way to do that.
