Vassar College Digital Library
Subject

JEL Classification: C1

The dynamics of patent citations

Publication Date
2006-July-03
Document Type
Authors
Department or Program
Document Type
Abstract

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...

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