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Positive Mathematical Programming: a Comparison of Different Specification Rules


  • Fragoso, Rui Manuel de Sousa
  • Carvalho, Maria Leonor da Silva
  • Henriques, Pedro Damiao de Sousa


In this paper, the prescriptive capacity of different types of positive mathematical programming models applied to the Alentejo agricultural sector is analysed. Model results are compared for 2000 and 2004 agricultural price and subsidies scenarios, regarding optimal combination of activities. Thus, it is tested, on one hand, models capacity to reproduce Alentejo agricultural sector behaviour, and by the other hand, their response and adjustment capacities to changes in prices and in agricultural policy.

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  • Fragoso, Rui Manuel de Sousa & Carvalho, Maria Leonor da Silva & Henriques, Pedro Damiao de Sousa, 2008. "Positive Mathematical Programming: a Comparison of Different Specification Rules," 2008 International Congress, August 26-29, 2008, Ghent, Belgium 44242, European Association of Agricultural Economists.
  • Handle: RePEc:ags:eaae08:44242

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    References listed on IDEAS

    1. Spreen, Thomas H., 2006. "Price Endogenous Mathematical Programming Models and Trade Analysis," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 38(02), August.
    2. Horner, G.L. & Corman, J. & Howitt, R.E. & Carter, C.A. & MacGregor, R.J., 1992. "The Canadian Regional Agriculture Model Structure, Operation and Development," Papers 1-92, Gouvernement du Canada - Agriculture Canada.
    3. Heckelei, Thomas & Britz, Wolfgang, 2005. "Models Based on Positive Mathematical Programming: State of the Art and Further Extensions," 89th Seminar, February 2-5, 2005, Parma, Italy 234607, European Association of Agricultural Economists.
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    Cited by:

    1. Rui Fragoso & Carlos Marques & Maria Raquel Lucas & Maria Belém Martins & Raúl Fernandes Jorge, 2009. "The Economic Effects of Common Agricultural Policy Trends on Montado Ecosystem in Southern Portugal," CEFAGE-UE Working Papers 2009_12, University of Evora, CEFAGE-UE (Portugal).
    2. Henseler, Martin & Wirsig, Alexander & Herrmann, Sylvia & Krimly, Tatjana & Dabbert, Stephan, 2009. "Modeling the impact of global change on regional agricultural land use through an activity-based non-linear programming approach," Agricultural Systems, Elsevier, vol. 100(1-3), pages 31-42, April.
    3. Fragoso, R. & Marques, C. & Lucas, M.R. & Martins, M.B. & Jorge, R., 2011. "The economic effects of common agricultural policy on Mediterranean montado/dehesa ecosystem," Journal of Policy Modeling, Elsevier, vol. 33(2), pages 311-327, March.

    More about this item


    Positive mathematical programming; agricultural supply; Alentejo; Research Methods/ Statistical Methods;

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