If the American people feel that trade is just a one-way street, where everybody is selling to the enormous U.S. market but we can never sell what we make anywhere else, then people in the United States will start thinking, well, this is a bad deal for us.

WHITEHOUSE: Town Hall with Students in Mumbai

One upshot is that growing mountain of yuan deposits in Hong Kong - because all this wonderful trade in renminbi is essentially one way.

BBC: Mr Osborne and China's long road to a global currency

Settling the big one, Sir Leon hopes, should pave the way for a fresh European-American trade initiative.

ECONOMIST: That awkward relationship

Theoretically one way to game the contest would be to trade in and out of positions using real-time quotes, which would give a trader the advantage over others in the contest, who used delayed quotes when they tracked their portfolio on the channel's Web site.

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