Abstract
Revealed preferences are not consistent. Many anomalies have been found in different contexts. This finding leads to a divergence between normative and descriptive analyses. There are several ways of facing this problem. In this paper we argue in favour of debiasing observed choices in such a way that the “true” preferences are discovered. Our procedure is based on quantitative corrections derived from assuming the descriptive validity of prospect theory and the normative validity of expected utility theory. Those corrective formulas were first applied by Bleichrodt et al. (Manag Sci 47:1498–1514, 2001). We explain here how such formulas can be used to avoid inefficient allocation of health care resources. This approach shares the philosophy of libertarian paternalism (LP). However, it reduces some of the potential problems of LP: the definition of error (and the need to nudge people) is more clear and objective. In this sense, it reduces the chances that the regulator tries to nudge people toward behaviour based on her preferences rather than those of the people she is nudging.
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References
Abellán-Perpiñán JM, Pinto-Prades JL, Méndez-Martínez I, Badía X (2006) Towards a better QALY model. Health Econ 15: 665–676
Abellan-Perpiñan JM, Bleichrodt H, Pinto-Prades JL (2009) The predictive validity of prospect theory versus expected utility in health utility measurement. J Health Econ 28: 1039–1047
Allais M (1953) Le comportement de l’homme rationnel devant le risque: Critique des postulats et axiomes de l’Ecole Américaine. Econometrica 21: 503–546
Bernheim BD, Rangel A (2005) Behavioral public economics: welfare and policy analysis with non-standard decision-makers. NBER Working Paper No. 11518 July
Beshears J, Choi JJ, Laibson D, Madrian BC (2008) How are preferences revealed. J Publ Econ 92 (8–9): 1787–1794
Birnbaum MH (2008) New paradoxes of risky decision making. Psychol Rev 115(2): 463–501
Bleichrodt H, Pinto JL (2000) A parameter-free elicitation of the probability weighting function in medical decision analysis. Manag Sci 46: 1485–1496
Bleichrodt H, Quiggin J (1997) Characterizing QALYs under a general rank dependent utility model. J Risk Uncertain 15: 151–165
Bleichrodt H, Pinto JL, Wakker P (2001) Making descriptive use of prospect theory to improve the prescriptive use of expected utility. Manag Sci 47: 1498–1514
Bleichrodt H, Abellan-Perpiñan JM, Pinto-Prades JL, Mendez-Martinez I (2007) Resolving inconsistencies in utility measurement under risk: tests of generalizations of expected utility. Manag Sci 53: 469–482
Booij AS, Van Praag BMS, Vande Kuilen G (2010) A parametric analysis of prospect theorys functionals for the general population. Theory Decis 68(1): 115–148
Braga J, Starmer C (2005) Preference anomalies, preference elicitation and the discovered preference hypothesis. Environ Resour Econ 32: 55–89
Braga J, Humphrey SJ, Starmer C (2009) Market experience eliminates some anomalies-and creates new ones. Eur Econ Rev 53: 401–416
Brazier J, Roberts J, Deverill M (2002) The estimation of a preference-based measure of health from the SF-36. J Health Econ 21: 271–292
Camerer CF (1995) Individual decision making. In: Kagel J, Roth AE Hanbook of experimental economics. Princenton University Press, Princenton
Cox JC, Grether DM (1996) The preference reversal phenomenon: response mode, markets and incentives. Econ Theory 7: 381–405
Diecidue E, Wakker PP (2001) On the intuition of rank-dependent utility. J Risk Uncertain 23: 281–298
Dolan P (2000) The measurement of health-related quality of life for use in resource allocation decisions in health care. In: Culyer AJ, Newhouse JP (eds) (eds) Handbook of health economics, vol 1B. Elsevier, Amsterdam, pp 1723–1760
Dolan P, Kahneman D (2008) Interpetations of utility and their implications for the valuation of health. Econ J 118: 215–234
Ellsberg D (1961) Risk ambiguity and the Savage axioms. Q J Econ 75: 643–669
Feeny DH, Furlong WJ, Torrance GW et al (2002) Multiattribute and single-attribute utility functions for the Health Utilities Index Mark 3 system. Med Care 40: 113–128
Gonzalez R, Wu G (1999) On the shape of the probability weighting function. Cogn Psychol 38: 129–166
Harsanyi JC (1955) Cardinal welfare, individualistic ethics, and interpersonal comparisons of utility. J Polit Econ 63: 309–321
Hershey JC, Schoemaker PJ (1985) Probability versus certainty equivalence methods in utility measurement: are they equivalent?. Manag Sci 31: 1213–1231
Kahneman D, Tversky A (1979) Prospect theory: an analysis of decision under risk. Econometrica 47: 263–291
Knetsch J, Tang FF, Thaler R (2001) The endowment effect and repeated market trials: is the Vickrey auction demand revealing?. Exper Econ 4: 257–269
Köbberling V, Wakker PP (2005) An index of loss aversion. J Econ Theory 122: 119–131
Larrick RP (2004) Debiasing. In: Koehler DJ, Harvey N (eds) (eds) Blackwell handbook of judgment and decision making. Blackwell, Oxford, pp 316–337
Loomes G (2010) Modeling choice and valuation in decision experiments. Psychol Rev 117(3): 902–924
Loomes G, Starmer C, Sugden R (2003) Do anomalies disappear in repeated markets?. Econ J 113: 153–166
Mitchell G (2005) Libertarian paternalism is an oxymoron. Nw UL Rev 99: 1245–1817
Pliskin JS, Shepard DS, Weinstein MC (1980) Utility functions for life years and health status. Oper Res 28: 206–224
Plott CP (1996) Rational individual behavior in markets and social choice processes. In: Arrow KJ, Colombatto E, Perlman M, Schmidt C (eds) The rational foundations of economic behavior: proceedings of the IEA conference held in Turin, Italy. St Martin’s Press, New York, pp 225–250
Plott CR, Zeiler K (2005) The willingness to pay–willingness to accept gap, the ‘endowment effect’, subject misconceptions, and experimental procedures for eliciting valuations. Am Econ Rev 95: 530–545
Prelec D (1998) The probability weighting function. Econometrica 66: 497–528
Robinson A, Loomes G, Jones-Lee M (2001) Visual analog scales, standard gambles, and relative risk aversion. Med Decis Making 21: 17–27
Savage LJ (1954) The foundations of statistics. Wiley, New York
Shalev J (2000) Loss aversion equilibrium. Int J Game Theory 29: 269–287
Shogren J, Cho S, Koo C, List J, Park C, Polo P, Wilhelmi R (2001) Auction mechanisms and the measurement of WTP and WTA. Resour Energy Econ 23: 97–109
Stalmeier PFM, Bezembinder TGG (1999) The discrepancy between risky and riskless utilities: a matter of framing?. Med Decis Making 19: 435–447
Starmer C (2000) Developments in Non-expected utility theory: the hunt for a descriptive theory of choice under risk. J Econ Lit 38: 332–382
Sugden R (2005) Coping with preference anomalies in cost–benefit analysis: a market-simulation approach. Environ Resour Econ 32: 129–160
Sugden R (2009) On nudging: a review of nudge: Improving decisions about health, wealth and happiness by richard H. Thaler and cass R. Sunstein. Int J Econ Bus 16(3): 365–373
Sunstein C, Thaler R (2003) Libertarian paternalism is not an oxymoron. Univ Chic Law Rev 70: 1159–1202
Tversky A, Kahneman D (1992) Advances in prospect theory: cumulative representation of uncertainty. J Risk Uncertain 5: 297–323
Thaler RH, Sunstein CR (2003) Libertarian paternalism. Am Econ Rev 93(2): 175–179
van Osch S, van den Hout W, Stiggelbout AM (2006) Exploring the reference point in prospect theory: gambles for length of life. Med Decis Making 26: 338–346
Van de Kuilen G (2009) Subjective probability weighting and the discovered preference hypothesis. Theory Decis 67: 1–22
Wakker PP (2010) Prospect theory: for risk and ambiguity. Cambridge University Press, Cambridge
Wakker PP, Köbberling V, Schwieren C (2007) Prospect-theory’s diminishing sensitivity versus economics’ intrinsic utility of money: how the introduction of the euro can be used to disentangle the two empirically. Theory Decis 63: 205–231
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Pinto-Prades, JL., Abellan-Perpiñan, JM. When normative and descriptive diverge: how to bridge the difference. Soc Choice Welf 38, 569–584 (2012). https://doi.org/10.1007/s00355-012-0655-5
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DOI: https://doi.org/10.1007/s00355-012-0655-5