Last updated:Â 25 september, 2009 - 14:55 GMT
G20: US-China relationship
One of the issues to be discussed at the G20 summit is the huge trade imbalance between the world's biggest economic power, the United States and the emerging economic superpower, China.
China has relied for much of its economic growth on Americans buying its goods.
But as US consumers feel the pinch, China is hoping its citizens will spend more to maintain demand and keep its factories open.
The ´óÏó´«Ã½'s economics correspondent Andrew Walker in Pittsburgh has been talking to two experts, Sharon Feng, a businesswoman who's been living in the US for 25 years and Tom Buelle of Pittsburg China Center.
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First broadcast 25 September 2009
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