thesis presentation
TRANSCRIPT
LITERATURE REVIEW
THE WILLINGNESS TO PAY FOR HEALTH GAINS AND THE WILLINGNESS TO ACCEPT
COMPENSATION FOR HEALTH LOSSES
INTRODUCTIONProblem statement, concepts, research objective & questions
METHODSDatabases, inclusion- and exclusion criteria
RESULTSWTA-WTP ratios, explanatory variables
CONCLUSION & DISCUSSION
INTRODUCTION
€ 1,000,000 €750,000
88% effective 85% effective
INTRODUCTION
€80,000
COST
EFFECTIVENESS
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PROBLEM STATEMENT
Incremental cost effectiveness ratio (Nelson, et al., 2009)
KEY CONCEPTS
WILLINGNESS TO PAY (WTP)
WILLINGNESS TO ACCEPT (WTA)
The buying price for gaining additional health
The amount of compensation for relinquishing health
THE OBJECTIVE WAS: “to test the 1:1 “Willingness to accept-Willingness
to pay” ratio assumption derived from the rational choice theory with
respect to the valuation of health, by providing an overview of the
current body of empirical evidence about the ratio between willingness
to pay for health gains and willingness to accept health losses”
RESEARCH QUESTION
What is the empirical evidence regarding the ratio between
willingness to pay for health gains and the willingness to accept
health losses”
What is the ratio between willingness to pay for health gains and the
willingness to accept health losses?
Which factors could influence the ratio between willingness to accept
health losses and willingness to pay for health gains?
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METHODOLOGY
Inclusion criteria
• Studies must contain a health related outcome measure
• Articles written in Dutch or English • Studies should allow for the
calculation of both willingness to pay and willingness to accept, either directly or indirectly
• Empirical studies
Exclusion criteria
• The outcome measure is not health related
• Articles with incomplete (outcome) measurements/lacking relevant (outcome) measurements
• Non-empirical studies
1. SEARCH QUERIES
In abstract: ((willingness to pay" or "wtp" or "willingness-to-pay") and ("willingness-to-accept" or "wta" or "willingness to accept" or "compensation" or "compensation demanded" or "willingness to accept compensation))
Health key words: e.g. health, quality of life, health care Economic evaluation: cost-effectiveness analysis, cost-utility, cost-benefit Choice experiments: discrete choice experiment, contingent valuation
METHODOLOGY
2. OUTCOMES
Articles retrieved: 291 Systematic review: 15 studies Snowballing method: 2 studies
17
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10
6
4
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12
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HEALTHCARE SAFETY ENVIRONMENT
RESULTS: WTA:WTP RATIO
RATIONAL CHOICE THEORY1:1 WTA-WTP ratio
Income effect
Substitution effect
Endowment effect
RESULTS: EXPLANATORY FACTORS
CONCLUSION
INCOME EFFECT
ENDOWMENT EFFECT
REFERENCE POINT
GENDER
AGE
SUBSTITUTION EFFECT
PROSPECT THEORY
VALUE DISPARITY
WTA
WTP
IMPRECISION HYPOTHESIS>
DISCUSSION
STRENGTHS & WEAKNESSES
3 Categories: (1) health, (2) safety and (3) environment
RECOMMENDATIONS
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Qualitative research
More emphasis on WTA
17 studies