Matching patents to compustat firms, 1980–2015: Dynamic reassignment, name changes, and ownership structures

Ashish Arora (), Sharon Belenzon and Lia Sheer

Research Policy, 2021, vol. 50, issue 5

Abstract: This paper describes the methodology used to construct a new sample of patents matched to Compustat firms for the period 1980–2015. We compare our data to existing NBER data sets and underscore several methodological improvements, including dynamic matching, company name changes, and ownership structures. We examine how our improved match changes results obtained from the ’01 and ’06 NBER patent files using comparable samples. Overall, we find that improved patent assignment leads to slightly higher estimates of patent value in market value regressions, as well as to higher estimates of the R&D elasticity in patenting regressions.

Keywords: Innovation; NBER patent data; R&D; Market value; Measurement error (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:respol:v:50:y:2021:i:5:s0048733321000214

DOI: 10.1016/j.respol.2021.104217

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