The Contingency of Contingent Valuation How Much Are People Willing to Pay against Alzheimer's Disease?
Tóm tắt
The present work focuses on the choice of the elicitation technique within a contingent valuation (CV) framework. We simultaneously apply three different elicitation techniques to elicit willingness-to-pay (WTP) values for three programs against Alzheimer's disease. First, the dichotomous choice approach is used, which is the standard procedure. However, giving respondents only a yes/no response alternative seems to result in overestimated WTP values. Therefore, we secondly apply the dissonance-minimizing format which screens respondents for their preferences and thus avoids possible yea-saying and protest answers against the payment vehicle. The third format, a modified version of the payment card, allows respondents to express a level of voting certainty and to make less of a commitment. With our findings we show that a well-designed CV method is a suitable instrument for helping decision makers in the health care sector and that the Swiss population favors highly a program which improves the situation of informal caregivers.
Tài liệu tham khảo
Blamey, R. K., J. W. Bennett and M. D. Morrison. (1999). "Yea-Saying in Contingent Valuation Surveys." Land Economics 75(1), 126–141.
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Boyle, K. J., F. R. Johnson and D.W. McCollum et al. (1996). "Valuing Public Goods: Discrete versus Continuous Contingent-Valuation Responses." Land Economics 72(3), 381–396.
Callahan, C. M., H. C. Hendrie and W. M. Tierney. (1995). "Documentation and Evaluation of Cognitive Impairment in Elderly Primary Care Patients." Annals of Internal Medicine 122, 422–429.
Cameron, T. A. and D. D. Huppert. (1989). "OLS versus ML Estimation of Non-market Resource Values with Payment Card Interval Data." Journal of Environmental Economics and Management 17(3), 230–246.
Champ, P. A., R. C. Bishop and T. C. Brown et al. (1997). "Using Donation Mechanisms to Value Nonuse Benefits from Public Goods." Journal of Environmental Economics and Management 33, 151–162.
Donaldson, C., A. M. Jones, T. J. Mapp and J. A. Olson. (1998). "Limited Dependent Variables in Willingness to Pay Studies: Applications in Health Care." Applied Economics 30, 667–677.
Drummond, M. F., B. J. O'Brien, G. L. Stoddart and G.W. Torrance. (1997). Methods for the Economic Evaluation of Health Care Programmes, 2nd ed. Oxford, New York, Toronto: Oxford University Press.
Ernst, R. L. and J. W. Hay. (1997). "Economic Research on Alzheimer Disease: A Review of the Literature." Alzheimer Disease and Associated Disorders 11(Suppl. 6), 135–145.
Folstein, M. F., S. E. Folstein and P. R. McHugh. (1975). " 'Mini Mental State.' A Practical Method for Grading the Cognitive State of Patients for the Clinician." Journal of Psychiatric Research 12, 189–198.
Hanemann, W. M. (1984). "Welfare Evaluations in Contingent Valuation Experiments with Discrete Responses." American Journal of Agricultural Economics 66, 332–341.
Hackl, F. and G. J. Pruckner. (1999). "On the Gap between Payment Card and Closed-Ended CVM-Answers." Applied Economics 31(6), 733–742.
Hebert, L. E., P. A. Scherr and L. A. Beckett et al. (1995). "Age-Specific Incidence of Alzheimer's Disease in a Community Population." JAMA 273(17), 1354–1359.
Johannesson, M. (1996). Theory and Methods of Economic Evaluation of Health Care. Dordrecht, Boston and London: Kluwer Academic Publishers.
Klose, T. (1999). "The Contingent Valuation Method in Health Care." Health Policy 47(2), 97–123.
Kriström, B. (1990). "A Non-Parametric Approach to the Estimation of Welfare Measures in Discrete Response Valuation Studies." Land Economics 66(2), 135–139.
Mayeux, R. and M. Sano. (1999). "Drug Therapy: Treatment of Alzheimer's Disease." New England Journal of Medicine 341(22), 1670–1679.
Meek, P. D., E. K. McKeithan and G. T. Schumock. (1998). "Economic Considerations in Alzheimer's Disease." Pharmacotherapy 18(2), 68S–73S.
Mitchell, R. C. and R. T. Carson. (1989). Using Surveys to Value Public Goods, The Contingent Valuation Method. Washington, D.C.: Resources for the Future.
Mueller, D. C. (1989). Public Choice II. Cambridge: Cambridge University Press.
Näslund, J.,V. Haroutunian and R. Mohs et al. (2000). "Correlation Between Elevated Levels of Amyloid β-Peptide in the Brain and Cognitive Decline." JAMA 283(12), 1571–1577.
Poe, G. L., M. P. Welsh and P. A. Champ. (1997). "Measuring the Difference in Mean Willingness to Pay When Dichotomous Choice Contingent Valuation Responses Are Not Independent." Land Economics 73(2), 255–267.
Portney, P. R. (1994). "The Contingent Valuation Debate: Why Economists Should Care." Journal of Economic Perspectives 8(4), 3–17.
Ready, R. C., J. C. Buzby and D. Hu. (1996). "Differences Between Continuous and Discrete Contingent Value Estimates." Land Economics 72(3), 397–411.
Schumock, G. T. (1998). "Economic Considerations in the Treatment and Management of Alzheimer's Disease." American Journal of Health-System Pharmacy 55(Suppl. 2), S17–S21.
Shackley, P. and C. Donaldson. (2000). "Willingness to Pay for Publicly-Financed Health Care: How should we use the Numbers?" Applied Economics 32, 2015–2021.
Small, G. W., P. V. Rabins and P. P. Barry et al. (1997). "Diagnosis and Treatment of Alzheimer Disease and Related Disorders–Consensus Statement of the American Association for Geriatric Psychiatry, the Alzheimer's Association and the American Geriatric Society." JAMA 278(16), 1363–1371.
Souêtre, E., R. M. A. Thwaites and H. L. Yeardley. (1999). "Economic Impact of Alzheimer's Disease in the United Kingdom–Cost of Care and Disease Severity for Non-Institutionalised Patients with Alzheimer's Disease." British Journal of Psychiatry 174, 51–55.
van Crevel, H., W. A. van Gool and G. J. M. Walstra. (1999). "Early Diagnosis of Dementia: Which Tests are Indicated? What are Their Costs?" Journal of Neurology 246, 73–78.
Vassar, R., B. D. Bennett and S. Babu-Khan et al. (1999). "b-Secretase Cleavage of Alzheimer's Amyloid Precursor Protein by the Transmembrane Aspartic Protease BACE." Science 286, 735–741.
Volz, A., A. U. Monsch and A. Zahno et al. (2000). "Was kostet die Schweiz die Alzheimer-Krankheit 1998?–Eine pr¨alimin¨are Analyse (What did Alzheimer's Disease Cost Switzerland in 1998? A Preliminary Analysis)." Praxis 89, 803–811.
Welsh, M. P. and G. L. Poe. (1998). "Elicitation Effects in Contingent Valuation: Comparisons to a Multiple Bounded Discrete Choice Approach." Journal of Environmental Economics and Management 36, 170–185.