Applied Economics Teaching Resources

an AAEA Journal

Agricultural and Applied Economics Association

Teaching and Educational Methods

Teaching Price Elasticity of Demand and Marginal Analysis using Household Water Pricing

Eric Edwards(a), Sara A. Sutherland(b), Anastasia W. Thayer(c)
(a)North Carolina State University, (b)Duke University, (c)Clemson University

JEL Codes: A20, Q25
Keywords: conservation pricing, graduate teaching, undergraduate teaching, urban water

Publish Date: August 2, 2023

View Full Article (PDF) | Request Teaching Notes/Supplemental Materials

Abstract

Understanding the economics of urban water pricing is fundamentally about the concepts of price elasticity of demand and marginal analysis. Recent advances in our understanding of consumer response to water pricing, emerging discussions of equity issues, and water utility interest in innovative pricing approaches make this topic important to integrate into any class on natural resources or water economics. To aid instructors, we highlight current issues in the field and emerging research, and present materials used to teach urban water pricing to both undergraduate and graduate audiences. We present a variety of activities and resources to integrate concepts of price elasticity of demand, conservation pricing, utility considerations, and equity issues. After using these materials, students are expected to know how to calculate prices and elasticities and explain these values in the broader context of conservation and equity

Eric C. Edwards is an Assistant Professor at North Carolina State University. Sara A. Sutherland is a Lecturer at Duke University. Anastasia W. Thayer is an Assistant Professor at Clemson University (Corresponding author: awthaye@clemson.edu)

Copyright is governed under Creative Commons CC BY-NC-SA

References

Agthe, D.E., and R.B. Billings. 1987. “Equity, Price Elasticity, and Household Income under Increasing Block Rates for Water.” American Journal of Economics and Sociology 46(3):273–286.

Baerenklau, K.A., K.A. Schwabe, and A. Dinar. 2014. “The Residential Water Demand Effect of Increasing Block Rate Water Budgets.” Land Economics 90(4):683–699.

Barbera´n, R., and F. Arbue´s. 2009. “Equity in Domestic Water Rates Design.” Water Resources Management 23(10):2101–2118.

Beecher, J.A. 2020. “Policy Note: A Universal Equity–Efficiency Model for Pricing Water.” Water Economics and Policy 6(03):2071001.

Borenstein, S. 2012. “The Redistributional Impact of Nonlinear Electricity Pricing.” American Economic Journal: Economic Policy 4(3):56–90.

Brent, D.A. 2016. “Estimating Water Demand Elasticity at the Intensive and Extensive Margin.” Technical report. Department of Economics Working Paper Series. Department of Economics, Louisiana State  University. Available at: https://pas.lsu.edu/business/economics/files/workingpapers/pap16_06.pdf

Brent, D.A., and M.B. Ward. 2019. “Price Perceptions in Water Demand.” Journal of Environmental Economics and  Management 98:102266.

Brown, T.C., V. Mahat, and J.A. Ramirez. 2019. “Adaptation to Future Water Shortages in the United States Caused by Population Growth and Climate Change.” Earth’s Future 7(3):219–234.

Browne, O.R., L. Gazze, and M. Greenstone. 2021. “Do Conservation Policies Work? Evidence From Residential Water Use.” Environmental and Energy Policy and the Economy 2(1):190–225.

Bruno, E.M., and K. Jessoe. 2021. “Using Price Elasticities of Water Demand to Inform Policy.” Annual Review of Resource Economics 13:427–441.

Cardoso, D., and C. Wichman. 2020. “Water Affordability in the United States.” Manuscript submitted to Water Resources  Research, 1–24.

Dalhuisen, J.M., R.J. Florax, H.L. De Groot, and P. Nijkamp. 2003. “Price and Income Elasticities of Residential Water Demand: A Meta-Analysis.” Land Economics 79(2):292–308.

Espey, M., J. Espey, and W.D. Shaw. 1997. “Price Elasticity of Residential Demand for Water: A Meta-Analysis.” Water  Resources Research 33(6):1369–1374.

Faust, K.M., D.M. Abraham, and S.P. McElmurry. 2016. “Water and Wastewater Infrastructure Management in Shrinking Cities.” Public Works Management Policy 21(2):128–156.

Feldstein, M.S. 1972. “Distributional Equity and the Optimal Structure of Public Prices.” The American Economic Review                 62(1/2):32–36.

García-Valin˜as, M.Á. 2005. “Efficiency and Equity in Natural Resources Pricing: A Proposal for Urban Water Distribution Service.” Environmental and Resource Economics 32(2):183–204.

Grafton, Q.R. 2017. “Responding to the ‘Wicked Problem’ of Water Insecurity.” Water Resources Management  31(10):3023–3041.

Grafton, R.Q., L. Chu, and P. Wyrwoll. 2020. “The Paradox of Water Pricing: Dichotomies, Dilemmas, and Decisions.” Oxford Review of Economic Policy 36(1):86–107.

Ito, K. 2014. “Do Consumers Respond to Marginal or Average Price? Evidence from Nonlinear Electricity Pricing.” American Economic Review 104(2):537–563.

Jessoe, K., and D. Rapson. 2014. “Knowledge Is (Less) Power: Experimental Evidence from Residential Energy Use.”  American Economic Review 104(4):1417–1438.

Kummu, M., J.H. Guillaume, H. de Moel, S. Eisner, M. Flörke, M. Porkka, S. Siebert, T.I. Veldkamp, and P. Ward. 2016. “The       World’s Road to Water Scarcity: Shortage and Stress in the 20th Century and Pathways Towards Sustainability.” Scientific Reports 6(1):1–16.

Levinson, A., and E. Silva. 2022. “The Electric Gini: Income Redistribution Through Energy Prices.”  American Economic Journal: Economic Policy 14(2):341–365.

Luby, I.H., S. Polasky, and D.L. Swackhamer. 2018. “U.S. Urban Water Prices: Cheaper When Drier.” Water Resources Research 54(9):6126–6132.

Mansur, E.T., and S.M. Olmstead. 2012. “The Value of Scarce Water: Measuring the Inefficiency of Municipal Regulations.” Journal of Urban Economics 71(3):332–346.

Mayer, P., W. DeOreo, T. Chesnutt, and L. Summers. 2008. “Water Budgets and Rate Structures: Innovative Management Tools.” Journal-American Water Works Association 100(5):117–131.

Nataraj, S., and W.M. Hanemann. 2011. “Does Marginal Price Matter? A Regression Discontinuity Approach to Estimating Water Demand.” Journal of Environmental Economics and Management 61(2):198–212.

Olmstead, S.M. 2004. “Thirsty Colonias: Rate Regulation and the Provision of Water Service.” Land Economics 80(1):136–150.

Olmstead, S.M., and R.N. Stavins. 2009. “Comparing Price and Nonprice Approaches to Urban Water Conservation.” Water Resources Research 45(4):1-10.

Patterson, L.A., and M.W. Doyle. 2021. “Measuring Water Affordability and the Financial Capability of Utilities.” AWWA Water Science 3(6):e1260.

Ramsey, F.P. 1927. “A Contribution to the Theory of Taxation.” The Economic Journal 37(145):47–61.

Sadler, R.C., and A.R. Highsmith. 2016. “Rethinking Tiebout: The Contribution of Political Fragmentation and Racial/Economic Segregation to the Flint Water Crisis.” Environmental Justice 9(5):143–151.

Schoengold, K., and D. Zilberman. 2014. “The Economics of Tiered Pricing and Cost Functions: Are Equity, Cost Recovery, and Economic Efficiency Compatible Goals?” Water Resources and Economics 7:1–18.

Smith, S.M. 2022. “The Effects of Individualized Water Rates on Use and Equity.” Journal of Environmental Economics and Management 114:102673.

Swain, M., E. McKinney, and L. Susskind. 2020. “Water Shutoffs in Older American Cities: Causes, Extent, and Remedies.” Journal of Planning Education and Research, 0739456X20904431.

Teodoro, M.P., and R.R. Saywitz. 2020. “Water and Sewer Affordability in the United States: A 2019 Update.” AWWA Water Science 2(2):e1176.

Wichman, C.J. 2014. “Perceived Price in Residential Water Demand: Evidence from a Natural Experiment.” Journal of  Economic Behavior & Organization 107:308–323.

Wichman, C.J., L.O. Taylor, and R.H. Von Haefen. 2016. “Conservation Policies: Who Responds to Price and Who Responds to Prescription?” Journal of Environmental Economics and Management 79:114–134.