A note on the relationship between ex ante and expected willingness to pay for health care

  • Johannesson M
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Abstract

It has been argued that the willingness to pay for health care services in contingent valuation studies should be assessed ex ante from an insurance perspective. It may however be easier to assess the willingness to pay among a group of patients in need of a specific treatment. This willingness to pay measure can be used to estimate the expected willingness to pay. This paper investigates the relationship between ex ante and expected willingness to pay. It is shown that expected willingness to pay is a lower bound for ex ante willingness to pay for a treatment that restores the individual to full health for an individual that is risk averse with respect to income. For a treatment that does not restore an individual to full health the expected willingness to pay is not necessarily a lower bound for the ex ante willingness to pay if the marginal utility of income increases with better health.

Author-supplied keywords

  • Contingent valuation
  • Cost-benefit analysis
  • Health care
  • Willingness to pay

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Authors

  • Magnus Johannesson

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