And start-ups freely copy other people ideas and try to improve on them.

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That system of state capitalism worked when the aim was to copy and adapt other people's ideas in the cheapest way possible.

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And he requires employees to have at least two other people copy-edit and make corrections to every important email and letter that goes out.

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"If we do it and do it right, there are 100 other people who will copy our data and use it in interesting ways, " Malamud says.

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But when computers came along, he rapidly and enthusiastically embraced them--he believed they improved his productivity and made it immeasurably easier for him to keep track of other people's copy.

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Because if Iraq is not effectively disarmed not only could she use chemical and biological weapons against her own people again, other rogue states would be encouraged to copy her, the spread of those weapons would multiply the likelihood that terrorists would lay their hands on them.

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He, of all people, will want to build something that other cities will want to copy, not avoid.

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In this version of the study, half of the people received the normal photograph, and the other half received a blurry copy of the photograph.

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