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US shutdown deal: Why are investors worried?

13 December 2013 Last updated at 10:59 GMT

The Republican-dominated House of Representatives has passed a two year compromise spending plan designed to prevent future shutdowns, like the one that forced the government to close for two weeks.

Final passage is expected next week in the Senate - but it does not tackle that other thorny issue of America's borrowing limit or "debt ceiling".

So it is not seen as good news for investors, as Michelle Fleury reports.