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Modelo para datos de recuentro de corte transversal con exceso de ceros. Aplicación a citas patentes

  • Margarita E. Romero Rodríguez

    ()

    (Universidad de la Laguna. Departamento de Economía de las Instituciones, Estadística Económica y Econometría)

  • Enrique Los Arcos

    ()

    (Oficina Europea de Patentes. The Hague, Holanda)

  • Victor Cano Fernández

    ()

    (Universidad de la Laguna. Departamento de Economía de las Instituciones, Estadística Económica y Econometría)

  • Miguel Sánchez Padrón

    ()

    (Universidad de La Laguna. Departamento de Economía Aplicada)

Registered author(s):

    En este trabajo se discuten diversos modelos de regresión para el análisis de datos de recuento de corte transversal,haciendo especial hincapié en la forma en que cada uno recoge dos de las características más comunes de este tipo de datos, el exceso de ceros y la heterogeneidad no observada. Además se lleva a cabo su aplicación en un conjunto de datos sobre patentes, concedidas por la Oficina Europea de Patentes (OEP). En concreto se analiza una de las relaciones propuestas en la literatura, la planteada entre el número de citas recibidas por las patentes y el alcance de las mismas, considerando, además, otro conjunto de características que pueden ser relevantes en la explicación del número de citas. La comparación de los resultados obtenidos con las distintas aproximaciones ilustra la influencia del tipo de modelo elegido sobre las conclusiones que pueden extraerse.

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    File URL: http://www.bibliotecas.ulpgc.es/fcee/hemeroteca/documentos%20de%20trabajo/DocumentosDTrabajo/doc9/dot2001-09.PDF
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    Paper provided by Facultad de Ciencias Económicas de la ULPGC in its series Documentos de trabajo conjunto ULL-ULPGC with number 2001-05.

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    Length: 29 pages
    Date of creation: 2001
    Date of revision:
    Handle: RePEc:can:series:2001-05
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    1. Winkelmann, Rainer & Zimmermann, Klaus F., 1991. "A new approach for modeling economic count data," Economics Letters, Elsevier, vol. 37(2), pages 139-143, October.
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    4. Meyer, Martin, 2000. "Does science push technology? Patents citing scientific literature," Research Policy, Elsevier, vol. 29(3), pages 409-434, March.
    5. Ozuna, Teofilo, Jr & Gomez, Irma Adriana, 1995. "Specification and Testing of Count Data Recreation Demand Functions," Empirical Economics, Springer, vol. 20(3), pages 543-50.
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    9. Cameron, A C & P. K. Trivedi & Frank Milne & J. Piggott, 1988. "A Microeconometric Model of the Demand for Health Care and Health Insurance in Australia," Review of Economic Studies, Wiley Blackwell, vol. 55(1), pages 85-106, January.
    10. Mullahy, John, 1997. "Heterogeneity, Excess Zeros, and the Structure of Count Data Models," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 12(3), pages 337-50, May-June.
    11. Albert, M. B. & Avery, D. & Narin, F. & McAllister, P., 1991. "Direct validation of citation counts as indicators of industrially important patents," Research Policy, Elsevier, vol. 20(3), pages 251-259, June.
    12. Dietmar Harhoff & Francis Narin & F. M. Scherer & Katrin Vopel, 1999. "Citation Frequency And The Value Of Patented Inventions," The Review of Economics and Statistics, MIT Press, vol. 81(3), pages 511-515, August.
    13. Gurmu, Shiferaw & Rilstone, Paul & Stern, Steven, 1998. "Semiparametric estimation of count regression models1," Journal of Econometrics, Elsevier, vol. 88(1), pages 123-150, November.
    14. Mullahy, John, 1986. "Specification and testing of some modified count data models," Journal of Econometrics, Elsevier, vol. 33(3), pages 341-365, December.
    15. Cameron, A. Colin & Trivedi, Pravin K., 1990. "Regression-based tests for overdispersion in the Poisson model," Journal of Econometrics, Elsevier, vol. 46(3), pages 347-364, December.
    16. Winkelmann, Rainer, 1995. "Duration Dependence and Dispersion in Count-Data Models," Journal of Business & Economic Statistics, American Statistical Association, vol. 13(4), pages 467-74, October.
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