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Urban freshwater needs and spatial cost externalities for coastal aquifers: a theoretical approach

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  • Michel Moreaux

    (LERNA - Economie des Ressources Naturelles - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements de Toulouse - INRA - Institut National de la Recherche Agronomique - CEA - Commissariat à l'énergie atomique et aux énergies alternatives, UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements de Toulouse)

  • Arnaud Reynaud

    (LERNA - Economie des Ressources Naturelles - UT Capitole - Université Toulouse Capitole - Comue de Toulouse - Communauté d'universités et établissements de Toulouse - INRA - Institut National de la Recherche Agronomique - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

Abstract

Saltwater intrusion in coastal aquifers is one of the main causes of groundwater quality degradation. These intrusions are often due to excessive withdrawals in sensitive parts of coastal aquifers. The scope of this paper is to identify specific problems set by optimal management of such a resource. To this end, we develop a simple spatial model describing a coastal aquifer under seawater intrusion. We show that water mining creates a specific cost externality between population spread over the aquifer. We then characterize the system of taxes that must be used to implement the optimum in a decentralized economy.

Suggested Citation

  • Michel Moreaux & Arnaud Reynaud, 2006. "Urban freshwater needs and spatial cost externalities for coastal aquifers: a theoretical approach," Post-Print hal-02659839, HAL.
    • Handle: RePEc:hal:journl:hal-02659839
    DOI: 10.1016/j.regsciurbeco.2005.09.002
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    Cited by:

    1. Alain Ayong Le Kama & Agnès Tomini, 2012. "Water Conservation versus Soil Salinity Control," Working Papers hal-04141151, HAL.
    2. Raphaël Soubeyran & Mabel Tidball & Agnes Tomini & Katrin Erdlenbruch, 2015. "Rainwater Harvesting and Groundwater Conservation: When Endogenous Heterogeneity Matters," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 62(1), pages 19-34, September.
    3. Kishore, Prabhat & Singh, Dharm Raj & Srivastava, Shivendra & Kumar, Pramod & Jha, Girish Kumar, 2021. "Impact of Subsoil Water Preservation Act, 2009 on Burgeoning Trend of Groundwater Depletion in Punjab, India," 2021 Conference, August 17-31, 2021, Virtual 315198, International Association of Agricultural Economists.
    4. Reinelt, Peter, 2020. "Spatial-dynamic seawater intrusion and pumping cost externalities in a confined aquifer," Resource and Energy Economics, Elsevier, vol. 59(C).
    5. Katrin Erdlenbruch & Raphael Soubeyran & Mabel Tidball & Agnes Tomini, 2012. "(Anti-)Coordination Problems with Scarce Water Resources," Working Papers 12-28, LAMETA, Universtiy of Montpellier, revised Sep 2012.
    6. Avila-Foucat, V.S. & Perrings, C. & Raffaelli, D., 2009. "An ecological-economic model for catchment management: The case of Tonameca, Oaxaca, México," Ecological Economics, Elsevier, vol. 68(8-9), pages 2224-2231, June.
    7. Julia de Frutos Cachorro & Katrin Erdlenbruch & Mabel Tidball, 2017. "A dynamic model of irrigation and land-use choice: application to the Beauce aquifer in France," European Review of Agricultural Economics, Oxford University Press and the European Agricultural and Applied Economics Publications Foundation, vol. 44(1), pages 99-120.
    8. R. Rejani & Madan Jha & S. Panda & R. Mull, 2008. "Simulation Modeling for Efficient Groundwater Management in Balasore Coastal Basin, India," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 22(1), pages 23-50, January.

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