Industry and government standards use a formula based on the weight of the birds.

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It has the remnants of a special relationship with America, it punches above its weight in military matters, and it has discovered in the third way a formula for grafting the entrepreneurial dynamism of Silicon Valley on to Europe's notions of equal opportunity and social justice.

ECONOMIST: Just let��s get stuck in

Our formula gives more weight to recent exits than older exits, to give credit to the best investors now.

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