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Aplicación del modelo de ajuste parcial nerloviano para estimar la elasticidad de la oferta de plátano en Colombia

Author

Listed:
  • Cancino, Susan

    (Universidad de Pamplona)

  • Escalante, Giovanni Orlando Cancino

    (Universidad de Pamplona)

Abstract

El objetivo del presente estudio fue estimar la respuesta de la oferta del plátano y las elasticidades de corto y largo plazo mediante el modelo de ajuste parcial desarrollado por Nerlove, tomando como base el periodo entre 2000 y 2018. Se aplicó un diseno de investigación explicativo, cuantitativo y correlacional y para la estimación empírica se empleó la metodología de los vectores autorregresivos. Los resultados indicaron que los coeficientes asociados al precio y producción rezagadas fueron positivos, significativos y coherentes con la teoría económica. Las elasticidades calculadas de corto plazo fueron inelásticas y similares a estudios relacionados con los cultivos permanentes por lo cual se puede inferir que las políticas de precios no son una herramienta eficaz para aumentar la oferta del plátano debido a la baja respuesta de la producción a movimientos en los precios. ***************************************************************************************************************************The objective of this study was to estimate the response of the plantain supply and the short and long-term elasticities through the partial adjustment model developed by Nerlove, based on the period between 2000 and 2018. An explanatory, quantitative and correlational research design was applied and for the empirical estimation, the methodology of autoregressive vectors was used. The results indicated that the coefficients associated with lagged price and production were positive, significant and consistent with economic theory. The short-term elasticities were inelastic and similar to studies related to permanent crops, thus price polices are not an effective tool to increase supply due the low response to price movements. ***************************************************************************************************************************O objetivo deste estudo foi estimar a resposta da oferta do plátano e as elasticidades de curto e longo prazo por meio do modelo de ajuste parcial desenvolvido por Nerlove, para o período entre 2000 e 2018. Um desenho de pesquisa explicativo, quantitativo e de correlacao, foi aplicada e para a estimativa empírica, utilizou-se uma metodologia vetorial auto-regresiva. Os resultados indicaram que os coeficientes associados ao preco e a producao defasados foram positivos, significativos e consistentes com a teoria economica. As elasticidades de curto prazo calculadas foram inelásticas e semelhantes a estudos relacionados com culturas permanentes, pelo que se pode inferir que as políticas de precos nao sao um instrumento eficaz para aumentar a oferta do plátano devido a baixa resposta da producao aos movimentos nos precos.

Suggested Citation

  • Cancino, Susan & Escalante, Giovanni Orlando Cancino, 2021. "Aplicación del modelo de ajuste parcial nerloviano para estimar la elasticidad de la oferta de plátano en Colombia," Revista Tendencias, Universidad de Narino, vol. 22(2), pages 57-75, July.
  • Handle: RePEc:col:000520:019389
    DOI: 10.22267/rtend.212202.168
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    References listed on IDEAS

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    1. Helmut Lütkepohl, 2005. "New Introduction to Multiple Time Series Analysis," Springer Books, Springer, number 978-3-540-27752-1, July.
    2. Haile, Mekbib G. & Kalkuhl, Matthias, 2013. "Agricultural supply response to international food prices and price volatility: a crosscountry panel analysis," 2013 Annual Meeting, August 4-6, 2013, Washington, D.C. 149630, Agricultural and Applied Economics Association.
    3. Marc Nerlove, 1958. "Distributed lags and Estimation of Long-Run Supply and Demand Elasticities: Theoretical Considerations," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 40(2), pages 301-310.
    4. Askari, Hossein & Cummings, John Thomas, 1977. "Estimating Agricultural Supply Response with the Nerlove Model: A Survey," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 18(2), pages 257-292, June.
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    More about this item

    Keywords

    cointegración; estacionariedad; expectativas de precios; respuesta oferta; vector autorregresivo;
    All these keywords.

    JEL classification:

    • C01 - Mathematical and Quantitative Methods - - General - - - Econometrics
    • Q10 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - General
    • Q11 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Aggregate Supply and Demand Analysis; Prices
    • Q12 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Micro Analysis of Farm Firms, Farm Households, and Farm Input Markets
    • Q18 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Policy; Food Policy; Animal Welfare Policy

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