"How to deal with this structural deficit undoubtedly will require both tax and spending initiatives, " Collyns added.
CNN: IMF: U.S. needs to balance budget
2.
Collyns said so far the weakening of the dollar had been "fairly orderly" in the sense that financial markets had not been substantially disrupted.
CNN: IMF: U.S. needs to balance budget
3.
Collyns said there was a substantial risk that foreign investors' appetite for U.S. assets -- particularly government assets -- would diminish over time, adding to pressure on the dollar.