Incentive pricing and cost recovery at the basin scale

Area of Science:

• Environmental Economics
• Water Resource Management
• Public Policy

Background:

• Incentive pricing can optimize water use and fund environmental remediation.
• High water prices may disproportionately affect low-income populations and basic needs.

Purpose of the Study:

• Analyze a two-tiered water pricing system to balance efficiency, equity, and sustainability.
• Evaluate water pricing strategies against existing regulations and marginal cost pricing.

Main Methods:

• Developed a dynamic nonlinear programming model for the Rio Grande Basin.
• Integrated supply, environmental, and resource costs into a river basin model.
• Compared three water pricing programs: Law of the River, marginal cost pricing, and two-tiered pricing.

Main Results:

• Two-tiered pricing demonstrated superior performance in efficiency compared to other methods.
• The system adequately addressed sustainability and equity goals.
• The model maximized net economic and environmental benefits under hydrological and institutional constraints.

Conclusions:

• Two-tiered water pricing offers a viable framework for achieving efficient and sustainable water use.
• This model meets basic water needs while encouraging conservation for discretionary uses.
• The findings support water pricing programs that align economic, environmental, and social policy objectives.