So long as foreigners continue to seek ever-increasing quantities of dollar investments in their portfolios, as they obviously have been, the exchange rate for the dollar will remain firm,

Should the pool of workers continue to shrink,

I have little doubt that my successors, and theirs, will continue to sustain the leadership of the American financial system in an ever-widening global economy,

The only way to have several currencies from divergent nations lumped together is if they are culturally close, such as Germany, the Netherlands and Austria. If they aren't, it simply can't continue to work.

It has been an extraordinary privilege to be able to serve my country at the Federal Reserve, and I would be honored if the Senate saw fit to enable me to continue this association for another four years,