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Using firm level panel data from the U.S., I explore the relationship between firm size and R&D productivity for two … obtained per dollar of investments. I find that the average quality of patents (citations received per patent) falls with firm … size in Pharmaceuticals, but there is no relationship between patent quality and firm size in Semiconductors. Citations …
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propose estimating nested logit demand models, using household panel data to automate the assignment of products to nests. Our …
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