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Title: A patent or copyright is a barrier to entry based on Post by: Tidy on Jun 21, 2015 A patent or copyright is a barrier to entry based on
A) ownership of a key necessary raw material. B) large economies of scale as output increases. C) government action to protect a producer. D) widespread network externalities. Title: Re: A patent or copyright is a barrier to entry based on Post by: VincenzoD on Jul 25, 2015 Content hidden
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