The importance of being first: evidence
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Aidan Hollis
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Article
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2002
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John Wiley and Sons
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English
β 175 KB
## Abstract This paper uses pooled crossβsection data on Canadian ethical drug sales to examine the effect of entry timing on sales of generic drugs. The data is for all drugs for which the first generic competitor entered during the years 1994β1997. It is found that the first generic entrant has a