IDEAS home Printed from
   My bibliography  Save this article

Tecnología agrícola internacional. Estudio comparativo con modelos panel no lineales


  • Cermeño, Rodolfo

    (Centro de Investigación y Docencia Económicas (CIDE))

  • Vázquez, Sirenia

    (Secretaría de Desarrollo Social, Gobierno de México)


The most common approach used in international comparisons of agricultural productivity and technological change is generally based on Cobb-Douglas production functions. Similarly, the technological level is usually modeled as a linear deterministic trend. In this paper, we propose more general and less restrictive specifications. In particular, we consider a translog production function as well as a dynamic stochastic representation of the technological level, which produces a non-linear dynamic panel data model. The model is estimated for a sample of 104 countries and various subsamples, over the period 1961-1991. We find that the proposed model outperforms the alternative specifications considered and we use its results to characterize the agricultural technological processes and to make comparisons among groups of countries. A striking result is that the technological gap between developed and less developed countries has considerably increased over this period of time.// Uno de los enfoques más utilizados en comparaciones internacionales de la productividad y el cambio tecnológico agrícola emplea funciones de producción de tipo Cobb-Douglas. Igualmente, el nivel tecnológico es por lo común representado mediante tendencias temporales lineales. En este trabajo se propone utilizar especificaciones menos restrictivas. En particular, se propone utilizar una función de producción translogarítmica junto con una representación estocástica dinámica del nivel tecnológico, lo cual produce un modelo panel dinámico no lineal. El modelo es estimado para un grupo de 104 países y varios subgrupos durante el periodo 1961-1991. Se encuentra que el modelo propuesto es mejor que otras especificaciones consideradas y se utilizan sus resultados para caracterizar los procesos tecnológicos y hacer comparaciones entre grupos de países. Uno de los resultados más destacables del estudio es que la brecha tecnológica entre países desarrollados y en desarrollo ha aumentado de manera considerable durante ese periodo.

Suggested Citation

  • Cermeño, Rodolfo & Vázquez, Sirenia, 2006. "Tecnología agrícola internacional. Estudio comparativo con modelos panel no lineales," El Trimestre Económico, Fondo de Cultura Económica, vol. 0(291), pages 539-573, julio-sep.
  • Handle: RePEc:elt:journl:v:73:y:2006:i:291:p:539-573

    Download full text from publisher

    File URL:
    Download Restriction: no

    More about this item


    Inter-country agricultural production function; Agricultural technology; Nonlinear dynamic panel models; Cobb-Douglas and Translog production functions; función de producción agrícola internacional; tecnología agrícola; modelos panel dinámicos no lineales; funciones de producción Cobb-Douglas y translogarítmicas;

    JEL classification:

    • C23 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Models with Panel Data; Spatio-temporal Models
    • Q16 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - R&D; Agricultural Technology; Biofuels; Agricultural Extension Services


    Access and download statistics


    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:elt:journl:v:73:y:2006:i:291:p:539-573. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Enrique Popoca). General contact details of provider: .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.