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

Anne Briand
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Anne Briand: University of Rouen

No 2006.144, Working Papers from Fondazione Eni Enrico Mattei

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.

Keywords: Computable General Equilibrium Model; Dynamic; Imperfect Competition; Water; Pricing; Sub Saharan Africa (search for similar items in EconPapers)
JEL-codes: C68 O13 (search for similar items in EconPapers)
Date: 2006-11
New Economics Papers: this item is included in nep-afr, nep-agr, nep-cmp and nep-env
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