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Deriving Time Discounting Correction Factors For Tto Tariffs

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  • Arthur E. Attema
  • Werner B.F. Brouwer

Abstract

The Time Trade‐off (TTO) method is a popular method for valuing health state utilities and is frequently used in economic evaluations. However, this method produces utilities that are distorted by several biases. One important bias entails the failure to incorporate time discounting. This paper aims to measure time discounting for health outcomes in a sample representative for the general population. In particular, we estimate TTO scores alongside time discounting in order to derive a set of correction factors that can be employed to correct raw TTO scores for the downward bias caused by time discounting. We find substantial positive correction factors, which are increasing with the severity of the health state. Furthermore, higher discounting is found when using more severe health states in the discounting elicitation task. More research is needed to further develop discount rate elicitation procedures and test their validity, especially in general public samples. Moreover, future research should investigate the correction of TTO values for other biases as well, such as loss aversion, and to develop a criterion to test the external validity of TTO scores. Copyright © 2013 John Wiley & Sons, Ltd.

Suggested Citation

  • Arthur E. Attema & Werner B.F. Brouwer, 2014. "Deriving Time Discounting Correction Factors For Tto Tariffs," Health Economics, John Wiley & Sons, Ltd., vol. 23(4), pages 410-425, April.
    • Handle: RePEc:wly:hlthec:v:23:y:2014:i:4:p:410-425
    DOI: 10.1002/hec.2921
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    1. Arthur E. Attema & Matthijs M. Versteegh & Mark Oppe & Werner B. F. Brouwer & Elly A. Stolk, 2013. "Lead Time Tto: Leading To Better Health State Valuations?," Health Economics, John Wiley & Sons, Ltd., vol. 22(4), pages 376-392, April.
    2. Gretchen B. Chapman & Arthur S. Elstein, 1995. "Valuing the Future," Medical Decision Making, , vol. 15(4), pages 373-386, October.
    3. Nick Bansback & Aki Tsuchiya & John Brazier & Aslam Anis, 2012. "Canadian Valuation of EQ-5D Health States: Preliminary Value Set and Considerations for Future Valuation Studies," PLOS ONE, Public Library of Science, vol. 7(2), pages 1-11, February.
    4. John Hey & Andrea Morone & Ulrich Schmidt, 2009. "Noise and bias in eliciting preferences," Journal of Risk and Uncertainty, Springer, vol. 39(3), pages 213-235, December.
    5. Peter Wakker & Anne Stiggelbout, 1995. "Explaining Distortions in Utility Elicitation through the Rank-dependent Model for Risky Choices," Medical Decision Making, , vol. 15(2), pages 180-186, June.
    6. Han Bleichrodt & Jose Maria Abellan-Perpiñan & Jose Luis Pinto-Prades & Ildefonso Mendez-Martinez, 2007. "Resolving Inconsistencies in Utility Measurement Under Risk: Tests of Generalizations of Expected Utility," Management Science, INFORMS, vol. 53(3), pages 469-482, March.
    7. Paul Dolan & Daniel Kahneman, 2008. "Interpretations Of Utility And Their Implications For The Valuation Of Health," Economic Journal, Royal Economic Society, vol. 118(525), pages 215-234, January.
    8. Paul Dolan & Claire Gudex, 1995. "Time preference, duration and health state valuations," Health Economics, John Wiley & Sons, Ltd., vol. 4(4), pages 289-299, July.
    9. Arthur E. Attema & Han Bleichrodt & Peter P. Wakker, 2012. "A Direct Method for Measuring Discounting and QALYs More Easily and Reliably," Medical Decision Making, , vol. 32(4), pages 583-593, July.
    10. Marjon Pol & Larissa Roux, 2005. "Time preference bias in time trade-off," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 6(2), pages 107-111, June.
    11. Sharma, Rajiv & Stano, Miron, 2010. "Implications of an economic model of health states worse than dead," Journal of Health Economics, Elsevier, vol. 29(4), pages 536-540, July.
    12. Peep F.M. Stalmeier & Thom G.G. Bezembinder, 1999. "The Discrepancy between Risky and Riskless Utilities," Medical Decision Making, , vol. 19(4), pages 435-447, October.
    13. A Mehrez & A Gafni, 1990. "Evaluating Health Related Quality-of-life: An Indifference Curve Interpretation for the Time Trade-off Technique," Centre for Health Economics and Policy Analysis Working Paper Series 13, Centre for Health Economics and Policy Analysis (CHEPA), McMaster University, Hamilton, Canada.
    14. Daniel Kahneman & Amos Tversky, 2013. "Prospect Theory: An Analysis of Decision Under Risk," World Scientific Book Chapters, in: Leonard C MacLean & William T Ziemba (ed.), HANDBOOK OF THE FUNDAMENTALS OF FINANCIAL DECISION MAKING Part I, chapter 6, pages 99-127, World Scientific Publishing Co. Pte. Ltd..
    15. Robinson, Angela & Dolan, Paul & Williams, Alan, 1997. "Valuing health status using VAS and TTO: What lies behind the numbers?," Social Science & Medicine, Elsevier, vol. 45(8), pages 1289-1297, October.
    16. Dolan, Paul, 2000. "The measurement of health-related quality of life for use in resource allocation decisions in health care," Handbook of Health Economics, in: A. J. Culyer & J. P. Newhouse (ed.), Handbook of Health Economics, edition 1, volume 1, chapter 32, pages 1723-1760, Elsevier.
    17. Nancy J. Devlin & Aki Tsuchiya & Ken Buckingham & Carl Tilling, 2011. "A uniform time trade off method for states better and worse than dead: feasibility study of the ‘lead time’ approach," Health Economics, John Wiley & Sons, Ltd., vol. 20(3), pages 348-361, March.
    18. David Parkin & Nancy Devlin, 2006. "Is there a case for using visual analogue scale valuations in cost‐utility analysis?," Health Economics, John Wiley & Sons, Ltd., vol. 15(7), pages 653-664, July.
    19. Tversky, Amos & Kahneman, Daniel, 1992. "Advances in Prospect Theory: Cumulative Representation of Uncertainty," Journal of Risk and Uncertainty, Springer, vol. 5(4), pages 297-323, October.
    20. Magnus Johannesson & Joseph S. Pliskin & Milton C. Weinstein, 1994. "A Note on QALYs, Time Tradeoff, and Discounting," Medical Decision Making, , vol. 14(2), pages 188-193, April.
    21. Han Bleichrodt & Jose Luis Pinto, 2000. "A Parameter-Free Elicitation of the Probability Weighting Function in Medical Decision Analysis," Management Science, INFORMS, vol. 46(11), pages 1485-1496, November.
    22. Amos Tversky & Daniel Kahneman, 1991. "Loss Aversion in Riskless Choice: A Reference-Dependent Model," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 106(4), pages 1039-1061.
    23. John M. Miyamoto & Stephen A. Eraker, 1985. "Parameter Estimates for a QALY Utility Model," Medical Decision Making, , vol. 5(2), pages 191-213, June.
    24. Attema, Arthur E. & Brouwer, Werner B.F., 2009. "The correction of TTO-scores for utility curvature using a risk-free utility elicitation method," Journal of Health Economics, Elsevier, vol. 28(1), pages 234-243, January.
    25. Bleichrodt, Han, 2001. "Probability Weighting in Choice under Risk: An Empirical Test," Journal of Risk and Uncertainty, Springer, vol. 23(2), pages 185-198, September.
    26. Arthur E. Attema & Werner B. F. Brouwer, 2008. "Can we fix it? Yes we can! But what? A new test of procedural invariance in TTO‐measurement," Health Economics, John Wiley & Sons, Ltd., vol. 17(7), pages 877-885, July.
    27. Han Bleichrodt & Jose Luis Pinto & Peter P. Wakker, 2001. "Making Descriptive Use of Prospect Theory to Improve the Prescriptive Use of Expected Utility," Management Science, INFORMS, vol. 47(11), pages 1498-1514, November.
    28. Amiram Gafni, 1995. "Time in Health," Medical Decision Making, , vol. 15(1), pages 31-37, February.
    29. van der Pol, Marjon & Cairns, John, 2008. "Comparison of two methods of eliciting time preference for future health states," Social Science & Medicine, Elsevier, vol. 67(5), pages 883-889, September.
    30. Peter Wakker & Daniel Deneffe, 1996. "Eliciting von Neumann-Morgenstern Utilities When Probabilities Are Distorted or Unknown," Management Science, INFORMS, vol. 42(8), pages 1131-1150, August.
    31. Angela Robinson & Anne Spencer, 2006. "Exploring challenges to TTO utilities: valuing states worse than dead," Health Economics, John Wiley & Sons, Ltd., vol. 15(4), pages 393-402, April.
    32. Bostic, Raphael & Herrnstein, R. J. & Luce, R. Duncan, 1990. "The effect on the preference-reversal phenomenon of using choice indifferences," Journal of Economic Behavior & Organization, Elsevier, vol. 13(2), pages 193-212, March.
    33. Linda D. MacKeigan & Amiram Gafni & Bernie J. O'Brien, 2003. "Double discounting of QALYs," Health Economics, John Wiley & Sons, Ltd., vol. 12(2), pages 165-169, February.
    34. Hugh Gravelle & Werner Brouwer & Louis Niessen & Maarten Postma & Frans Rutten, 2007. "Discounting in economic evaluations: stepping forward towards optimal decision rules," Health Economics, John Wiley & Sons, Ltd., vol. 16(3), pages 307-317, March.
    35. Mehrez, Abraham & Gafni, Amiram, 1990. "Evaluating health related quality of life: An indifference curve interpretation for the time trade-off technique," Social Science & Medicine, Elsevier, vol. 31(11), pages 1281-1283, January.
    36. H. Llewellyn-Thomas & H.J. Sutherland & R. Tibshirani & A. Ciampi & J.E. Till & N.F. Boyd, 1982. "The Measurement of Patients' Values in Medicine," Medical Decision Making, , vol. 2(4), pages 449-462, December.
    37. Torrance, George W., 1986. "Measurement of health state utilities for economic appraisal : A review," Journal of Health Economics, Elsevier, vol. 5(1), pages 1-30, March.
    38. Peep F. M. Stalmeier & Jan J. V. Busschbach & Leida M. Lamers & Paul F. M. Krabbe, 2005. "The gap effect: discontinuities of preferences around dead," Health Economics, John Wiley & Sons, Ltd., vol. 14(7), pages 679-685, July.
    39. van der Pol, Marjon & Cairns, John, 2002. "A comparison of the discounted utility model and hyperbolic discounting models in the case of social and private intertemporal preferences for health," Journal of Economic Behavior & Organization, Elsevier, vol. 49(1), pages 79-96, September.
    40. Attema, Arthur E. & Brouwer, Werner B.F., 2013. "In search of a preferred preference elicitation method: A test of the internal consistency of choice and matching tasks," Journal of Economic Psychology, Elsevier, vol. 39(C), pages 126-140.
    41. Han Bleichrodt, 2002. "A new explanation for the difference between time trade‐off utilities and standard gamble utilities," Health Economics, John Wiley & Sons, Ltd., vol. 11(5), pages 447-456, July.
    42. Abellan-Perpiñan, Jose Maria & Bleichrodt, Han & Pinto-Prades, Jose Luis, 2009. "The predictive validity of prospect theory versus expected utility in health utility measurement," Journal of Health Economics, Elsevier, vol. 28(6), pages 1039-1047, December.
    43. Chris Starmer, 2000. "Developments in Non-expected Utility Theory: The Hunt for a Descriptive Theory of Choice under Risk," Journal of Economic Literature, American Economic Association, vol. 38(2), pages 332-382, June.
    44. Chetan Dave & Catherine Eckel & Cathleen Johnson & Christian Rojas, 2010. "Eliciting risk preferences: When is simple better?," Journal of Risk and Uncertainty, Springer, vol. 41(3), pages 219-243, December.
    45. A.M. Stiggelbout & G.M. Kiebert & J. Kievit & J.W.H. Leer & G. Stoter & J.C.J.M. De Haes, 1994. "Utility Assessment in Cancer Patients," Medical Decision Making, , vol. 14(1), pages 82-90, February.
    46. L. M. Lamers & J. McDonnell & P. F. M. Stalmeier & P. F. M. Krabbe & J. J. V. Busschbach, 2006. "The Dutch tariff: results and arguments for an effective design for national EQ‐5D valuation studies," Health Economics, John Wiley & Sons, Ltd., vol. 15(10), pages 1121-1132, October.
    47. Bleichrodt, Han & Johannesson, Magnus, 1997. "Standard gamble, time trade-off and rating scale: Experimental results on the ranking properties of QALYs," Journal of Health Economics, Elsevier, vol. 16(2), pages 155-175, April.
    48. Peep F.M. Stalmeier & Thom G.G. Bezembinder & Ivana J. Unic, 1996. "Proportional Heuristics in Time Tradeoff and Conjoint Measurement," Medical Decision Making, , vol. 16(1), pages 36-44, February.
    49. van der Pol, Marjon & Cairns, John, 2001. "Estimating time preferences for health using discrete choice experiments," Social Science & Medicine, Elsevier, vol. 52(9), pages 1459-1470, May.
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    1. Stefan A. Lipman & Arthur E. Attema & Matthijs M. Versteegh, 2022. "Correcting for discounting and loss aversion in composite time trade‐off," Health Economics, John Wiley & Sons, Ltd., vol. 31(8), pages 1633-1648, August.
    2. Arthur E. Attema & Han Bleichrodt & Olivier l’Haridon & Stefan A. Lipman, 2020. "A comparison of individual and collective decision making for standard gamble and time trade-off," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 21(3), pages 465-473, April.
    3. Arthur Attema & Yvette Edelaar-Peeters & Matthijs Versteegh & Elly Stolk, 2013. "Time trade-off: one methodology, different methods," The European Journal of Health Economics, Springer;Deutsche Gesellschaft für Gesundheitsökonomie (DGGÖ), vol. 14(1), pages 53-64, July.

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    JEL classification:

    • D90 - Microeconomics - - Micro-Based Behavioral Economics - - - General
    • I10 - Health, Education, and Welfare - - Health - - - General

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