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

Author

Listed:
  • 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)

Abstract

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.

Suggested Citation

  • Margarita E. Romero Rodríguez & Enrique Los Arcos & Victor Cano Fernández & Miguel Sánchez Padrón, 2001. "Modelo para datos de recuentro de corte transversal con exceso de ceros. Aplicación a citas patentes," Documentos de trabajo conjunto ULL-ULPGC 2001-05, Facultad de Ciencias Económicas de la ULPGC.
    • Handle: RePEc:can:series:2001-05
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    References listed on IDEAS

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