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Article
The Dynamics of Patent Citations
Economics Letters (2007)
  • Alan C. Marco, Vassar College
Abstract
The use of patent citations as a measure of patent “quality” increased dramatically in recent years. In this note, I use hazard estimation to explore the dynamics of patent citation. I find evidence of unobserved heterogeneity and a means to separate patent quality from citation “inflation.”
Keywords
  • patents,
  • patent citations,
  • hazard,
  • duration,
  • survival
Disciplines
Publication Date
February, 2007
Citation Information
Alan C. Marco. "The Dynamics of Patent Citations" Economics Letters, Volume 94, Issue 2, (February 2007). http://dx.doi.org/10.1016/j.econlet.2006.08.014