By Jonathan Cable and Leika Kihara LONDON/TOKYO (Reuters) -Global factory activity accelerated in November although crippling supply bottlenecks remained, putting a cap on output and driving up the cost of raw materials, according to surveys published on Wednesday. Towards the end of the month, the newly-detected Omicron coronavirus variant emerged as a fresh worry for policymakers, who are already trying to pilot recovering economies and tamp-down inflation. The November surveys likely did not reflect the spread of the variant, which could add further pressure on pandemic-disrupted supply cha…

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