Patents, R&D and lag effects: evidence from flexible methods for count panel data on manufacturing firms
(2008)
Journal Article
Gurmu, S., & Pérez-Sebastián, F. (2008). Patents, R&D and lag effects: evidence from flexible methods for count panel data on manufacturing firms. Empirical economics, 35(3), 507-526. https://doi.org/10.1007/s00181-007-0176-8
This paper investigates the relationship between patents and research and development expenditures using new longitudinal patent data at the firm level for the U.S. manufacturing sector from 1982 to 1992. The paper also develops a new class of count... Read More about Patents, R&D and lag effects: evidence from flexible methods for count panel data on manufacturing firms.