Feasibility of Willingness-to-Pay Measurement in Chronic Arthritis

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Abstract
Quantification of nonmonetary aspects of disease is a major challenge for economic analysts. Using the amounts of money recipients are willing to pay for nonmonetary benefits has theoretical appeal, but it has proven difficult to implement. Difficulties encountered include noncomprehension by subjects, misrepresentation of preferences, extraneous determinants of answers, and ethical concerns. In a preliminary exploration of feasibility, 184 patients with osteoarthritis and rheumatoid arthritis were asked their willingness to pay (WTP) for hypothetical complete cure. With minimal pressure put on the patients to respond, 27 percent gave plausible answers. People with more schooling, with paid employment, or who were having more treatments for their arthritis were more likely to respond. Patients were willing on average to pay 17 percent of family income for arthritis cure. Methods for measuring WTP are being strengthened and may soon play an important role in health services research.