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Flexible Parametric Models for Long-Tailed Patent Count Distributions

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Author Info
 Guo, Jie Q
Trivedi, Pravin K

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Abstract

This article explores alternative approaches to modeling the relationship between the number of patents and research and development expenditure. Patent counts typically exhibit long upper tails that are inadequately modeled by standard Poisson and negative binomial regression models. We compare the performance of two relatively new "semiparametric" approaches with two flexible parametric approaches in analysing two patent data sets. Copyright 2002 by Blackwell Publishing Ltd

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Article provided by Department of Economics, University of Oxford in its journal Oxford Bulletin of Economics & Statistics.

Volume (Year): 64 (2002)
Issue (Month): 1 (February)
Pages: 63-82
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Handle: RePEc:bla:obuest:v:64:y:2002:i:1:p:63-82

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  1. Fidel Pérez Sebastián & Shiferaw Gurmu, 2007. "Patents, R&D And Lag Effects: Evidence From Flexible Methods For Count Panel Data On Manufacturing Firms," Working Papers. Serie AD 2007-03, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie). [Downloadable!]
  2. Michael Creel & Montserrat Farell, 2005. "Modeling Usage of Medical Care Services: The Medical Expenditure Panel Survey Data, 1996-2000," UFAE and IAE Working Papers 646.05, Unitat de Fonaments de l'Anàlisi Econòmica (UAB) and Institut d'Anàlisi Econòmica (CSIC). [Downloadable!]
  3. Eskander Alvi & Debasri Mukherjee & Ashraf Eid, 2007. "Do Patent Protection and Technology Transfer Facilitate R&D in Developed and Emerging Countries? A Semiparametric Study," Atlantic Economic Journal, International Atlantic Economic Society, vol. 35(2), pages 217-231, June. [Downloadable!] (restricted)
  4. Michele Cincera, 2005. "The link between firms’ R&D by type of activity and source of funding and the decision to patent," Working Papers DULBEA 05-10.RS, Université libre de Bruxelles, Department of Applied Economics (DULBEA). [Downloadable!]
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  5. Alka Chadha, 2005. "Trips and Patenting Activity: Evidence from the Indian Pharmaceutical Industry," Departmental Working Papers wp0512, National University of Singapore, Department of Economics. [Downloadable!]
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