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My Bottom Line: John Vincent, Leon

27 October 2011 Last updated at 17:47 BST

John Vincent is the co-founder of the Leon Restaurants chain.

He warns that you must not let your ego get in the way when you are making important analytical decisions - even if others think you are wrong.

John appeared on The Bottom Line, which was broadcast on BBC Radio 4, the BBC World Service and the BBC News Channel. You can also download the podcast.

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