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Groundwater externalities and strategies



A study of Groundwater externalities and methods of determining a price for these externalities and strategies to tackle them.

A study of Groundwater externalities and methods of determining a price for these externalities and strategies to tackle them.



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Groundwater externalities and strategies Groundwater externalities and strategies Presentation Transcript

  • Groundwater Externalities and Strategies
    Environment and Resource Economics
    Shivraj Singh Negi
  • Groundwater
    It provides about one-third of the world’s freshwater consumption.
    Input for many economic activities as well as used as a product.
    Has always been regarded as a common property resource.
    Collects slowly over very long periods of time as water seeps in from the surface.
  • Groundwater Use Externalities
    Water level descents, surface water flow reduction, water quality deterioration, land subsidence.
    Water quality is also degraded due to excessive extraction.
    Degradation of aquatic ecosystems.
    Soil salinity in areas served by canals. Importing Surface Water from far off areas creates its own set of problems.
    South Asia is the largest user of groundwater and groundwater irrigation plays a crucial role in supporting its largely agrarian economies.
  • Why Externalities Arise?
    Public Good, Private benefits from Public Costs.
    People who extract them and use them are not paying their scarcity rents (both in terms of quality and quantity); they only pay the private extraction costs.
    Problems are associated with identifying , measuring and making strategies/policies to tackle the externality.
  • Quantifying and Measuring Techniques
    Cost Benefit Analysis
    Revealed preference methods
    Hedonic Pricing Method
    Travel cost method
    Replacement cost method
    The Avertive Expenditures Method
    Production function approach
    Net factor income
    Cost-of-illness (COI) method
    Market prices
  • Quantifying and Measuring Techniques
    Stated preference methods
    Contingent valuation method
    Choice experiment method
  • Strategies and Policies
    Different strategies/policies for different kinds of externalities.
    Legalizing Illegal well and monitoring consumption.
    Monitoring electricity consumption for water pumping.
    Using weather forecasts to charge variable prices for water.
    In case of agriculture, rationed supply of electricity for water pumping.
    Monitoring Groundwater Quality to ensure that water prices reflect the cost of using such water.
  • Conclusion
    Studies suggest that different pricing mechanisms do affect water usage patterns.
    This effect is generated mainly as a result of water pricing providing incentives to the modification of production methods.
    Total Economic Value of groundwater resources should be determined in order to make sustainable, efficient and equitable allocation.
  • References
    Alexander E. Saak, J. M. (2007). Groundwater use under incomplete information. Journal of Environmental Economics and Management , 214–228.
    Casey Brown, P. R. (2006). Demand management of groundwater with monsoon forecasting. Agricultural Systems , 293-311.
    E. Fano, M. B. (1989). Issues in Ground-Water Economics. Developments in Water Science , 485-507.
    Edwards, S. F. (December 1988). Option prices for groundwater protection. Journal of Environmental Economics and Management , 475-487.
    Eric C. Schuck, G. P. (2002). Supply-based water pricing in a conjunctive use system: implications for resource and energy use. Resource and Energy Economics , 175-192.
  • References
    Escudero, J. G. (1989). Toward A Correct Evaluation of Water Economics: Experience from the Region of Murcia, Spain. Developments in Water Science , 231-248.
    Gonzalez, A. S. (1989). Ground Water Externalities . Developments in Water Science , 361-371.
    HamidBalali, S. K. (2011). Groundwater balance and conservation under different water pricing and agricultural policy scenarios: A case study of the Hamadan-Bahar plain. Ecological Economics , 863–872.
    Irene Blanco-Gutierreza, C. V.-O. (2011). Cost-effectiveness of groundwater conservation measures: A multi-level analysis with policy implications. Agricultural Water Management , 639-652.
    Korim, K. (1989). Economic Aspects of Ground Water Use . Developments in Water Science , 295-302.
  • References
    Kumar, M. D. (2005). Impact of electricity prices and volumetric water allocation on energy and groundwater demand management: Analysis from Western India. Energy Policy , 39–51.
    Loaiciga, H. A. (2004). Analytic game—theoretic approach to ground-water extraction. Journal of Hydrology , 22-33.
    Mukherji, A. (2007 ). The energy-irrigation nexus and its impact on groundwater markets in eastern Indo-Gangetic basin: Evidence from West Bengal, India. Energy Policy , 6413–6430.
    Petra Hellegers, D. Z. (2001 ). Dynamics of agricultural groundwater extraction. Ecological Economics , 303–311.
    Rimjhim M. Aggarwal, T. A. (2004 ). Does inequality lead to greater efficiency in the use of local commons? The role of strategic investments in capacity. Journal of Environmental Economics and Management , 163–182.
  • References
    Sahuquillo, A. (1989). Economic Aspects of the Conjunctive Use of Ground and Surface Water. Developments in Water Science , 347-359.
    Santiago J. Rubio, B. C. (2001). Competitive versus efficient extraction of a common property resource: The groundwater case. Journal of Economic Dynamics & Control , 1117-1137.
    Shah, T. (1989). Externality and Equity Implications of Private Exploitation of Ground Water Resources. Developments in Water Science , 119-139.
    Tushaar Shah, S. B. (2008). Groundwater governance through electricity supply management: Assessing an innovative intervention in Gujarat, western India. Agricultural Water Management , 1233-1242.
    Zekri, S. (2009). Controlling groundwater pumping online. Journal of Environmental Management , 3581-3588.