One of the commonly used methods to resolve internal business conflict in business break-ups is mediation.

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Merging has proved hard enough for banks from the same country with vaguely similar internal cultures: witness recent bust-ups at America's newly formed Citigroup and at the equally new HypoVereinsbank, based in Munich.

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Moreover, working with other start-ups in close quarters pushed PlanGrid to keep up thanks to peer pressure and their internal drive.

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