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Marginal Cost Versus Average Cost Pricing with Climatic Shocks in Senegal: A Dynamic Computable General Equilibrium Model Applied to Water

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  • Anne Briand

    (University of Rouen)

Abstract

The model simulates on a 20-year horizon, a first phase of increase in the water resource availability taking into account the supply policies by the Senegalese government and a second phase with hydrologic deficits due to demand evolution (demographic growth). The results show that marginal cost water pricing (with a subsidy ensuring the survival of the water production sector) makes it possible in the long term to absorb the shock of the resource shortage, GDP, investment and welfare increase. Unemployment drops and the sectors of rain rice, market gardening and drinking water distribution grow. In contrast, the current policy of average cost pricing of water leads the long-term economy in a recession with an agricultural production decrease, a strong degradation of welfare and a rise of unemployment. This result questions the basic tariff (average cost) on which block water pricing is based in Senegal.

Suggested Citation

  • Anne Briand, 2006. "Marginal Cost Versus Average Cost Pricing with Climatic Shocks in Senegal: A Dynamic Computable General Equilibrium Model Applied to Water," Working Papers 2006.144, Fondazione Eni Enrico Mattei.
    • Handle: RePEc:fem:femwpa:2006.144
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    5. Nabil Annabi & Fatou Cissé & John Cockburn & Bernard Decaluwé, 2005. "Trade Liberalisation, Growth and Poverty in Senegal: a Dynamic Microsimulation CGE Model Analysis," Cahiers de recherche 0512, CIRPEE.
    6. Jung, Hong-Sang & Thorbecke, Erik, 2003. "The impact of public education expenditure on human capital, growth, and poverty in Tanzania and Zambia: a general equilibrium approach," Journal of Policy Modeling, Elsevier, vol. 25(8), pages 701-725, November.
    7. Berck, Peter & Robinson, Sherman & Goldman, George E, 1990. "The use of computable general equilibrium models to assess water policies," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt082465zv, Department of Agricultural & Resource Economics, UC Berkeley.
    8. François Bourguignon & William H. Branson & Jaime de Melo, 1989. "Macroeconomic Adjustment and Income Distribution: A Macro-Micro Simulation Model," OECD Development Centre Working Papers 1, OECD Publishing.
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    Cited by:

    1. Anne Briand, 2008. "Les tarifications au coût marginal versus coût moyen face à des chocs climatiques au Sénégal : un modèle dynamique d’équilibre général calculable appliqué à l’eau," Économie et Prévision, Programme National Persée, vol. 185(4), pages 103-122.
    2. Van der Mensbrugghe, Dominique & Medvedev, Denis, 2010. "Climate change in Latin America: impacts and mitigation policy options," Libros de la CEPAL, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL), number 2590, May.
    3. Anne Briand, 2008. "Les Tarifications Au Coût Marginal Versus Coût Moyen Face À Des Chocs Climatiques Au Sénégal : Un Modèle Dynamique D'Équilibre Général Calculable Appliqué À L'Eau," Post-Print hal-02430398, HAL.
    4. Roseta-Palma, Catarina & Monteiro, Henrique, 2008. "Pricing for Scarcity," MPRA Paper 10384, University Library of Munich, Germany.
    5. Fuente, David, 2019. "The design and evaluation of water tariffs: A systematic review," Utilities Policy, Elsevier, vol. 61(C).

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    More about this item

    Keywords

    Computable General Equilibrium Model; Dynamic; Imperfect Competition; Water; Pricing; Sub Saharan Africa;
    All these keywords.

    JEL classification:

    • C68 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computable General Equilibrium Models
    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products

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