The dynamics of patent citations
The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation "inflation."
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- Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1992.
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Vassar College Department of Economics Working Paper Series
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- Marco, Alan C., 2005. "The option value of patent litigation: Theory and evidence," Review of Financial Economics, Elsevier, vol. 14(3-4), pages 323-351.
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- Enrico Moretti, 2004. "Workers' Education, Spillovers, and Productivity: Evidence from Plant-Level Production Functions," American Economic Review, American Economic Association, vol. 94(3), pages 656-690, June.
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