赫维茨进行经济学研究的时候正值关于中央计划机制和市场机制孰优孰劣之争激战正酣。

Mr Hurwicz took up economics at a time when debate was raging about the relative merits of central planning and the market mechanism.

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滴滴创始人程维和优步首席执行官特拉维斯·卡兰尼克将会加入对方公司的董事会。

Didi founder Cheng Wei and Uber Chief Executive Officer Travis Kalanick will join each other's boards.

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程维，1983年出生，是优步在中国的对手，滴滴快滴的首席执行官。这个交通行业的公司成立于2015年初，合并了程维的滴滴打车以及阿里巴巴的快的打车。

Cheng Wei (1983) is CEO of China's Uber rival Didi Kuaidi, a transportation company which was formed in early 2015 as a merge of Cheng's company Didi Dache and Alibaba's Kuaidi Dache.

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