Time preferences and risk aversion: Tests on domain differences

Christos A. Ioannou1, Jana Sadeh1
1Department of Economics, University of Southampton, Southampton, UK

Tóm tắt

Understanding how individuals discount and evaluate the risks of environmental outcomes is a prime component in designing effective environmental policy. We use an incentivized experimental design to investigate whether subjects’ time preferences and risk aversion across the monetary and environmental domains differ. We find that subjects’ time preferences are not significantly different across the two domains. In contrast, subjects exhibit a higher degree of risk aversion in the environmental domain. Furthermore, we corroborate earlier results, documenting that women are more risk averse than men in the monetary domain, and show this finding to also hold in the environmental domain.

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Andersen, S., Harrison, G.W., Lau, M.I., & Rutström, E.E. (2008). Eliciting Risk and Time Preferences. Econometrica, 76(3), 583–618. Andersen, S., Harrison, G.W., Lau, M.I., & Rutström, E.E. (2014). Discounting Behavior: A Reconsideration. European Economic Review, 71, 15–33. Barr, S., Shaw, G., & Coles, T. (2011). Sustainable Lifestyles: Sites, Practices, and Policy. Environment and Planning A, 43(12), 3011–29. Böhm, G., & Pfister, H.-R. (2005). Consequences, Morality, and Time in Environmental Risk Evaluation. Journal of Risk Research, 8(6), 461–79. Cairns, J., & van der Pol, M (1999). Do People Value Their Own Future Health Differently From Others’ Future Health? Medical Decision Making, 19(4), 466–72. Cairns, J.A. (1992). Health, Wealth and Time Preference. Project Appraisal, 7(1), 31–40. Camerer, C.F., & Hogarth, R.M. (1999). The Effects of Financial Incentives in Experiments: A Review and Capital-Labor-Production Framework. Journal of Risk and Uncertainty, 19(1-3), 7–42. Chapman, G.B. (1996). Temporal Discounting and Utility for Health and Money. Journal of Experimental Psychology Learning Memory and Cognition, 22(3), 771–91. Chapman, G.B., & Elstein, A.S. (1995). Valuing the Future Temporal Discounting of Health and Money. Medical Decision Making, 15(4), 373–86. Charness, G., Gneezy, U., & Kuhn, M.A. (2012). Experimental Methods: Between-Subject and Within-Subject Design. Journal of Economic Behavior and Organization, 81(1), 1–8. Coller, M., & Williams, M.B. (1999). Eliciting Individual Discount Rates. Experimental Economics, 2(2), 107–27. Cubitt, R.P., Starmer, C., & Sugden, R. (1998). On the Validity of the Random Lottery Incentive System. Experimental Economics, 1(2), 115–31. Cummings, R.G., Harrison, G.W., & Rutström, E.E. (1995). Homegrown Values and Hypothetical Surveys: Is the Dichotomous Choice Approach Incentive-Compatible? American Economic Review, 85(1), 260–6. DEFRA (2008). A Framework for Pro-Environmental Behaviours. Technical report, Department for Environment Food and Rural Affairs. Dohmen, T., Falk, A., Huffman, D., Sunde, U., Schupp, J., & Wagner, G.G. (2011). Individual Risk Attitudes: Measurement, Determinants, and Behavioral Consequences. Journal of the European Economic Association, 9(3), 522–50. Doyle, J.R. (2013). Survey of Time Preference, Delay Discounting Models. Judgment and Decision Making, 8(2), 116–35. Eckel, C.C., & Grossman, P.J. (2002). Sex Differences and Statistical Stereotyping in Attitudes Toward Financial Risk. Evolution and Human Behavior, 23(4), 281–95. Eckel, C.C., & Grossman, P.J. (2008). Forecasting Risk Attitudes: An Experimental Study Using Actual and Forecast Gamble Choices. Journal of Economic Behavior and Organization, 68(1), 1–17. Einav, L., Finkelstein, A., Pascu, I., & Cullen, M.R. (2012). How General Are Risk Preferences? Choices Under Uncertainty in Different Domains. American Economic Review, 102(6), 2606–38. Ferecatu, A., & Öncüler, A. (2016). Heterogeneous Risk and Time Preferences. Journal of Risk and Uncertainty, 53(1) , in press. Fischbacher, U. (2007). z-Tree: Zurich Toolbox for Ready-Made Economic Experiments. Experimental Economics, 10(2), 171–8. Frederick, S. (2005). Cognitive Reflection and Decision Making. Journal of Economic Perspectives, 19(4), 25–42. Frederick, S., Loewenstein, G., & O’Donoghue, T. (2002). Time Discounting and Time Preference: A Critical Review. Journal of Economic Literature, 40(2), 351–401. Gattig, A., & Hendrickx, L. (2007). Judgmental Discounting and Environmental Risk Perception: Dimensional Similarities, Domain Differences, and Implications for Sustainability. Journal of Social Issues, 63(1), 21–39. Green, L., Fry, A.F., & Myerson, J. (1994). Discounting of Delayed Rewards: A Life-Span Comparison. Psychological Science, 5(1), 33–6. Hardisty, D.J., Thompson, K.F., Krantz, D.H., & Weber, E.U. (2013). How to Measure Time Preferences: An Experimental Comparison of Three Methods. Judgment and Decision Making, 8(3), 236– 49. Hardisty, D.J., & Weber, E.U. (2009). Discounting Future Green: Money Versus the Environment. Journal of Experimental Psychology: General, 138(3), 329–40. Harrison, G.W., & Lau, M.I. (2005). Is the Evidence for Hyperbolic Discounting in Humans Just an Experimental Artefact? Behavioral and Brain Sciences, 28, 657–7. Hey, J.D., & Lee, J. (2005). Do Subjects Separate (or Are They Sophisticated)? Experimental Economics, 8(3), 233–65. Holt, C.A., & Laury, S.K. (2002). Risk Aversion and Incentive Effects. American Economic Review, 92(5), 1644–55. Jesson, J. (2009). Household Waste Recycling Behavior: A Market Segmentation Model. Social Marketing Quarterly, 15(2), 25–38. Kirby, K.N., & Marakovic, N.N. (1995). Modeling Myopic Decisions: Evidence for Hyperbolic Delay-Discounting within Subjects and Amounts. Organizational Behavior and Human Decision Processes, 64(1), 22–30. Kroll, Y., Levy, H., & Rapoport, A. (1988). Experimental Tests of the Separation Theorem and the Capital Asset Pricing Model. American Economic Review, 78(3), 500–19. Laury, S.K. (2005). Pay One or Pay All: Random Selection of One Choice for Payment. Discussion Paper, Andrew Young School, Georgia State University. Madden, G.J., Bickel, W.K., & Jacobs, E.A. (1999). Discounting of Delayed Rewards in Opioid-Dependent Outpatients: Exponential or Hyperbolic Discounting Functions? Experimental and Clinical Psychopharmacology, 7(3), 284–93. Nordhaus, W.D. (2007). A Review of the Stern Review on the Economics of Climate Change. Journal of Economic Literature, 45(3), 686–702. Raineri, A., & Rachlin, H. (1993). The Effect of Temporal Constraints on the Value of Money and Other Commodities. Journal of Behavioral Decision Making, 6 (2), 77–94. Read, D., Frederick, S., Orsel, B., & Rahman, J. (2005). Four Score and Seven Years from Now: The Date/Delay Effect in Temporal Discounting. Management Science, 51(9), 1326–35. Riddel, M. (2012). Comparing Risk Preferences over Financial and Environmental Lotteries. Journal of Risk and Uncertainty, 45(2), 135–57. Stern, N. (2007). The Economics of Climate Change: The Stern Review: Technical report, Cambridge University Press. Tsukayama, E., & Duckworth, A.L. (2010). Domain-Specific Temporal Discounting and Temptation. Judgment and Decision Making, 5(2), 72–82. Ubfal, D. (2016). How General are Time Preferences? Eliciting Good-Specific Discount Rates. Journal of Development Economics, 118, 150–70. Viscusi, W.K, Huber, J., & Bell, J. (2008). Estimating Discount Rates for Environmental Quality from Utility-Based Choice Experiments. Journal of Risk and Uncertainty, 37(2-3), 199–220. Weber, E.U., Blais, A., & Betz, N.E. (2002). A Domain-Specific Risk-Attitude Scale: Measuring Risk Perceptions and Risk Behaviors. Journal of Behavioral Decision Making, 15(4), 263–90. Weitzman, M.L. (2007). A Review of the Stern Review on the Economics of Climate Change. Journal of Economic Literature, 45(3), 703–24.