The Implicit Discount Rate, Information, and Investment in Energy-Efficient Appliances

A Review


  • Monalisa Singh Indian Institute of Technology Tirupati
  • Chandra Sekhar Bahinipati Indian Institute of Technology Tirupati



Energy labels, Implicit Discount Rate, Intertemporal choices, Investment Decision, Energy-efficient appliances, Information


The implicit discount rate (IDR) is a decisive factor in household investment decisions, and its modification could promote investment in energy-saving products. However, the discussion on households’ IDR in developing countries is limited. In this regard, the current study aims to provide a detailed review of the IDR across various investment decisions, factors affecting its value, and policy instruments that can influence its value. The study finds that the IDR value tends to be considerably higher than market interest rates. Information and behavioural failures lead to a high IDR and under-investment in energy efficiency, which may be addressed through energy labels. However, the effectiveness of energy labels in addressing barriers and making energy-efficiency information visible to households depends on their visual presentation, time frame (annual or lifetime), units of measurement (physical or monetary), and the content of the information. The review has relevance for policymaking aimed at increasing the adoption of energy-efficient options that reduce household carbon footprints and, in turn, contribute towards realizing the net-zero emissions target.


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Allcott, Hunt, and Nathan Wozny. 2014. “Gasoline Prices, Fuel Economy, and the Energy Paradox.” Review of Economics and Statistics 96 (5): 779–795.

Ameli, Nadia, and Nicola Brandt. 2015. “What Impedes Household Investment in Energy Efficiency and Renewable Energy?” International Review of Environmental and Resource Economics 8 (1): 101–138.

Bahinipati, Chandra Sekhar, Rahul A Sirohi, and Sagarika S Rao. 2022. “Technological Innovations, Behavioural Interventions, and Household Energy Conservation: Policy Insights and Lessons.” Ecology, Economy and Society–the INSEE Journal 5 (1): 63-87.

Bansal, Prateek, Rubal Dua, Rico Krueger, and Daniel Graham. 2021. “Fuel Economy Valuation and Preferences of Indian Two-wheeler Buyers.” Journal of Cleaner Production 294: 126328.

Bhattacharya, Soma, and Maureen Cropper. 2010. “Options for Energy Efficiency in India and Barriers to Their Adoption: A Scoping Study.” SSRN Electric Journal: 1590510.

Biswal, Dinamani, Monalisa Singh, and Chandra Sekhar Bahinipati. 2022. “Covid-19 in India: Reflections from Behavioral Economics.” The Journal of Developing Areas 56(3): 383–391.

Carrasco-Garcés, Moisés, Felipe Vásquez-Lavín, Roberto D Ponce Oliva, Francisco Diaz Pincheira, and Manuel Barrientos. 2021. “Estimating the Implicit Discount Rate for New Technology Adoption of Wood-burning Stoves.” Energy Policy 156: 112407.

Cattaneo, Cristina. 2019. “Internal and External Barriers to Energy Efficiency: Which Role for Policy Interventions?” Energy Efficiency 12 (5): 1293–1311.

Chernoff, Harry. 1983. “Individual Purchase Criteria for Energy-related Durables: The Misuse of Life Cycle Cost.” The Energy Journal 4 (4): 81–86.

Cohen, François, Matthieu Glachant, and Magnus Söderberg. 2017. “Consumer Myopia, Imperfect Competition and the Energy Efficiency Gap: Evidence from the UK Refrigerator Market.” European Economic Review 93: 1–23.

Damigos, Dimitris, Areti Kontogianni, Ch. Tourkolias, and Michalis Skourtos. 2021. “Dissecting Subjective Discount Rates and Investment Literacy for Energy-efficient Investments.” Energy Efficiency 14 (3): 1–20.

Delmas, Magali, Maria J Montes‐Sancho, and Jay P Shimshack. 2010. “Information Disclosure Policies: Evidence from the Electricity Industry.” Economic Inquiry 48 (2): 483–498.

Epper, Thomas, Helga Fehr-Duda, and Renate Schubert. 2011. “Energy-using Durables: The Role of Time Discounting in Investment Decisions.” IED Working Paper No. 11–16. Institute for Environmental Decisions, ETH Zurich.

Ferraro, Paul J, and Michael K Price. 2013. “Using Nonpecuniary Strategies to Influence Behavior: Evidence from a Large-scale Field Experiment.” The Review of Economics and Statistics 95 (1): 64–73.

Fischbacher, Urs, Simeon Schudy, and Sabrina Teyssier. 2021. “Heterogeneous Preferences and Investments in Energy Saving Measures.” Resource and Energy Economics 63: 101202.

Fuerst, Franz, and Ramandeep Singh. 2018. “How Present Bias Forestalls Energy Efficiency Upgrades: A Study of Household Appliance Purchases in India.” Journal of Cleaner Production 186: 558–569.

Gerarden, Todd, Richard G Newell, and Robert N Stavins. 2015. “Deconstructing the Energy-efficiency Gap: Conceptual Frameworks and Evidence.” American Economic Review 105 (5): 183–186.

Gillingham, Kenneth, Richard G Newell, and Karen Palmer. 2009. “Energy Efficiency Economics and Policy.” Annual Review of Resource Economics 1(1): 597–620.

Gillingham, Kenneth, and Karen Palmer. 2014. “Bridging the Energy Efficiency Gap: Policy Insights from Economic Theory and Empirical Evidence.” Review of Environmental Economics and Policy 8 (1): 18–38.

Giraudet, Louis-Gaëtan. 2020. “Energy Efficiency as a Credence Good: A Review of Informational Barriers to Energy Savings in the Building Sector.” Energy Economics 87: 104698.

Goett, A A. 1984. Household Appliance Choice: Revision of REEPS Behavioral Models. No. EPRI-EA-3409. Cambridge Systematics, Inc., Berkeley, CA (USA).

Haq, Gary, and Martin Weiss. 2018. “Time Preference and Consumer Discount Rates—Insights for Accelerating the Adoption of Efficient Energy and Transport Technologies.” Technological Forecasting and Social Change 137 (C): 76–88.

Hassett, Kevin A, and Gilbert E Metcalf. 1993. “Energy Conservation Investment: Do Consumers Discount the Future Correctly?” Energy Policy 21 (6): 710–716.

Hausman, Jerry A. 1979. “Individual Discount Rates and the Purchase and Utilisation of Energy-using Durables.” The Bell Journal of Economics 10 (1): 33–54.

He, Rui, Jianjun Jin, Haozhou Gong, and Yuhong Tian. 2019. “The Role of Risk Preferences and Loss Aversion in Farmers’ Energy-efficient Appliance Use Behavior.” Journal of Cleaner Production 215: 305–314.

Heinzle, Stefanie Lena. 2012. “Disclosure of Energy Operating Cost Information: A Silver Bullet for Overcoming the Energy-efficiency Gap?” Journal of Consumer Policy 35 (1): 43–64.

Heutel, Garth. 2019. “Prospect Theory and Energy Efficiency.” Journal of Environmental Economics and Management 96 (C): 236–254.

Houston, Douglas A. 1983. “Implicit Discount Rates and the Purchase of Untried, Energy-saving Durable Goods.” Journal of Consumer Research 10 (2): 236–246.

Howarth, Richard, and Alan H Sanstad. 1995. “Discount Rates and Energy Efficiency.” Contemporary Economic Policy 13 (3): 101–109.

IEA. 2019. World Energy Outlook 2019. Paris: International Energy Agency (IEA).

Jain, Manisha, Anand B Rao, and Anand Patwardhan. 2018. “Consumer Preference for Labels in the Purchase Decisions of Air Conditioners in India.” Energy for Sustainable Development 42: 24–31.

Jaffe, Adam, and Robert Stavins. 1994. “The Energy-efficiency Gap: What Does It Mean?” Energy Policy 22 (10): 804–810.

Kahneman, Daniel, and Amos Tversky. 1979. “On the Interpretation of Intuitive Probability: A Reply to Jonathan Cohen.” Cognition 7 (4): 409–411.

Lakić, Eden, Dimitris Damigos, and Andrej F Gubina. 2021. “How Important Is Energy Efficiency for Slovenian Households? A Case of Homeowners and Potential Homebuyers and Their Willingness to Invest in More Efficient Heating Controls.” Energy Efficiency 14 (1): 1–17.

Liebermann, Yehoshua, and Meyer Ungar. 1997. “Life Cycle Cost: An Individual Consumer’s Perspective.” Managerial and Decision Economics 18 (3): 227–234.<227::AID-MDE807>3.0.CO;2-5

Loewenstein, George, and Richard H Thaler. 1989. “Anomalies: Intertemporal Choice.” Journal of Economic Perspectives 3 (4): 181–193.

Matsumoto, Shigeru, and Yukiko Omata. 2017. “Consumer Valuations of Energy Efficiency Investments: The Case of Vietnam’s Air Conditioner Market.” Journal of Cleaner Production 142: 4001–4010.

Mau, Paulus, Mark Jaccard, Kenneth Tiedemann, Jimena Eyzaguirre, and Colleen Collins-Dodd. 2008. “The ‘Neighbor Effect’: Simulating Dynamics in Consumer Preferences for New Vehicle Technologies.” Ecological Economics 68 (1–2): 504–516.

Min, Jihoon, Inês L Azevedo, Jeremy Michalek, and Wändi Bruine de Bruin. 2014. “Labeling Energy Cost on Light Bulbs Lowers Implicit Discount Rates.” Ecological Economics 97: 42–50.

Meier, Alan K, and Jack Whittier. 1983. “Consumer Discount Rates Implied by Purchases of Energy-efficient Refrigerators.” Energy 8 (12): 957–962.

Newell, Richard G, and Juha Siikamäki. 2014. “Nudging Energy Efficiency Behavior: The Role of Information Labels.” Journal of the Association of Environmental and Resource Economists 1 (4): 555–598.

Ortoleva, Pietro. 2010. “Status Quo Bias, Multiple Priors and Uncertainty Aversion.” Games and Economic Behavior 69 (2): 411–424.

Park, Jiyong, JongRoul Woo, and Taeyoung Jin. 2022. “Estimating Implicit Discount Rate for Energy Efficiency Investment Using the Contingent Valuation Method: A Case Study in South Korea.” Energy Efficiency 15 (8): 67.

Qiu, Yueming, Gregory Colson, and Carola Grebitus. 2014. “Risk Preferences and Purchase of Energy-efficient Technologies in the Residential Sector.” Ecological Economics 107: 216–229.

Qiu, Yueming, Yi David Wang, and Jianfeng Wang. 2015. “Implied Discount Rate and Payback Threshold of Energy Efficiency Investment in the Industrial Sector.” Applied Economics 47 (21): 2218–2233.

Ruderman, Henry, Mark D Levine, and James E McMahon. 1987. “The Behavior of the Market for Energy Efficiency in Residential Appliances Including Heating and Cooling Equipment.” The Energy Journal 8 (1): 101–124.

Sallee, James. 2014. “Rational Inattention and Energy Efficiency.” The Journal of Law and Economics 57 (3): 781–820.

Samuelson, William, and Richard Zeckhauser. 1988. “Status Quo Bias in Decision Making.” Journal of Risk and Uncertainty 1 (1): 7–59.

Schleich, Joachim, Xavier Gassmann, Corinne Faure, and Thomas Meissner. 2016. “Making the Implicit Explicit: A Look Inside the Implicit Discount Rate.” Energy Policy 97: 321–331.

Silvi, Mariateresa, and Emilio Padilla Rosa. 2021. “Reversing Impatience: Framing Mechanisms to Increase the Purchase of Energy-saving Appliances.” Energy Economics 103: 105563.

Simon, Herbert A. 1990. “Bounded Rationality.” In Utility and Probability, 15–18. Palgrave Macmillan: London.

Stadelmann, Marcel. 2017. “Mind the Gap? Critically Reviewing the Energy Efficiency Gap with Empirical Evidence.” Energy Research and Social Science 27: 117–128.

Stadelmann, Marcel, and Renate Schubert. 2018. “How Do Different Designs of Energy Labels Influence Purchases of Household Appliances? A Field Study in Switzerland.” Ecological Economics 144 (C): 112–123.

Sutherland, Ronald J. 2003. The High Costs of Federal Energy Efficiency Standards for Residential Appliances. Cato Institute, 2003.

Train, Kenneth. 1985. “Discount Rates in Consumers’ Energy-related Decisions: A Review of the Literature.” Energy 10 (12): 1243–1253.

Verboven, Frank. 1999. “Implicit Interest Rates in Consumer Durables Purchasing Decisions: Evidence From Automobiles.” Antwerp: Center for Economic Research, University of Antwerp.

Wang, Chen, and Ricardo Daziano. 2015. “On the Problem of Measuring Discount Rates in Intertemporal Transportation Choices.” Transportation 42 (6): 1019–1038.

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How to Cite

Singh, M., & Bahinipati, C. S. (2024). The Implicit Discount Rate, Information, and Investment in Energy-Efficient Appliances: A Review. Ecology, Economy and Society–the INSEE Journal, 7(2), 11–28.