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Reversing the Property Rights: Practice-Based Approaches for Controlling Agricultural Nonpoint-Source Water Pollution When Emissions Aggregate Nonlinearly

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Nonpoint-source pollution remains a troubling source of water quality problems despite decades of economics research on the matter. Among the chief difficulties for addressing the issue are the property rights assignments implicit in the current policy environment that favor agricultural nonpoint-source pollution, the unobservability of field-level emissions, and complex fate and transport relationships linking them to ambient water quality. Theoretical and practical considerations lead to the focus on observable abatement actions (conservation practices). Biophysical models are increasingly more capable of linking abatement actions to policy-relevant water quality outcomes. If costs of abatement actions are known, finding the least-cost mix of abatement actions is possible, while incorporating the nonlinearity of the pollution process. When costs are not known or information is incomplete, regulators can rely on flexible incentive-based programs, but the design of such programs is complicated by the complexities of emission aggregation. In this work, we focus on the regulator capable of focusing on nonpoint-source emitters. We address the design and performance of three practice-based approaches, ranging from the command-and-control approach mandating practices, to the more flexible performance standard approach where farmers are free to select the optimal mix of on-farm conservation practices, to a fully flexible approach where credits for conservation practices are freely tradable. We do so by utilizing the representation of the nonlinear emission aggregation (fate and transport) process (the Soil and Water Assessment Tool model), and consider cases ranging from the regulator having perfect information on the costs of conservation practices to no information at all. We show how workable programs utilizing the biophysical models and simulation-optimization approaches can be designed, and assess their performance relative to the efficient case. We find that flexible programs perform well both in terms of cost and water quality goals attainment. In particular, a trading program designed around an approximation of the nonlinear pollution process performs well, relative to first-best under no information on the cost of conservation practices.

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Paper provided by Center for Agricultural and Rural Development (CARD) at Iowa State University in its series Center for Agricultural and Rural Development (CARD) Publications with number 12-wp533.

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Date of creation: Sep 2012
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Handle: RePEc:ias:cpaper:12-wp533

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  1. Horan, Richard D. & Shortle, James S. & Abler, David G., 1998. "Ambient Taxes When Polluters Have Multiple Choices," Journal of Environmental Economics and Management, Elsevier, vol. 36(2), pages 186-199, September.
  2. JunJie Wu & Bruce A. Babcock, 1996. "Contract Design for the Purchase of Environmental Goods from Agriculture," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 78(4), pages 935-945.
  3. Segerson, Kathleen, 1988. "Uncertainty and incentives for nonpoint pollution control," Journal of Environmental Economics and Management, Elsevier, vol. 15(1), pages 87-98, March.
  4. Hung, Ming-Feng & Shaw, Daigee, 2005. "A trading-ratio system for trading water pollution discharge permits," Journal of Environmental Economics and Management, Elsevier, vol. 49(1), pages 83-102, January.
  5. Anastasia Lintner & Alfons Weersink, 1999. "Endogenous Transport Coefficients: Implications for Improving Water Quality from Multi-Contaminants in an Agricultural Watershed," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 14(2), pages 269-296, September.
  6. Morgan, Cynthia L. & Coggins, Jay S. & Eidman, Vernon R., 2000. "Tradable Permits For Controlling Nitrates In Groundwater At The Farm Level: A Conceptual Model," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 32(02), August.
  7. Cabe, Richard & Herriges, Joseph A., 1992. "The regulation of non-point-source pollution under imperfect and asymmetric information," Journal of Environmental Economics and Management, Elsevier, vol. 22(2), pages 134-146, March.
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