So the American economy needs the world, and the world needs the American economy.

Oil prices have certainly become a threat for the world economy.

We have believed for many years, much earlier than anyone else was talking about this issue, that it was in the interest of China to evolve to a more flexible exchange rate system.

We also need a fund that can say 'no'.

So the American economy needs the world, and the world needs the American economy.

To try to correct imbalances with trade restrictions is a grave error.

There is not an alternative to the US as the engine for growth.