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2013-05-23 12:21
求翻译：In order to control for the possibility of the slow expansion of distribution channels, I have also re-estimated the model by replacing the number of generic manufacturers with the number of distributors[ A generic manufacturer may use multiple distributors to sell their generic drugs. See James (1981) or Caves et是什么意思？ 待解决
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In order to control for the possibility of the slow expansion of distribution channels, I have also re-estimated the model by replacing the number of generic manufacturers with the number of distributors[ A generic manufacturer may use multiple distributors to sell their generic drugs. See James (1981) or Caves et
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