According to a survey by the economist Ofer Azar, the absolute size of tips in the US is overwhelmingly dependent on the size of the bill.

经济学家奥费尔·阿扎尔(Ofer Azar)的调查发现，在美国，小费的绝对金额在很大程度上取决于账单金额。

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Associates pointed out that Mr Ofer had longstanding personal and business ties in Britain.

CNN: Israel's richest man risks anger over UK move

Shelly Yachimovich, leader of the left-wing Labour party, singled out Mr Ofer for criticism in her campaign.

CNN: Israel's richest man risks anger over UK move

Ofer is bullish on America as a place with a great business culture.

FORBES: Ofer Shapiro and Vidyo: Bringing New Jobs and Innovations to America