European shares were set to edge up on Wednesday, adding to gains in the previous session, and after a rally on Wall Street, though renewed worries about the US economy and caution ahead of employment data were expected to limit the upside.

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Financial spreadbetters expected Britain's FTSE 100 to open as much as 5 points lower, or 0.1 percent, weighed down by ex-dividend factors; Germany's DAX to open up to 36 points higher, or as much as 0.5 percent, and France's CAC to open up to 13 points higher, or as much as 0.3 percent.