A game of two halves? Incentive incompatibility, starting point bias and the bidding game contingent valuation method.
The bidding game (BG) method of contingent valuation is one way to increase the precision of willingness to pay (WTP) estimates relative to the single dichotomous choice approach. However, there is evidence that the method may lead to incentive incompatible responses and be associated with starting point bias. While previous studies in health using BGs test for starting point bias, none have also investigated incentive incompatibility. Using a sample of respondents resident in Burkina Faso, West Africa, this paper examines whether the BG method is associated with both incentive incompatibility and starting point bias. We find evidence for both effects. However, average WTP values remained largely unaffected after accounting for both factors in multivariate analyses. The results suggest that the BG method is an acceptable technique in settings where prices for goods are flexible.
McNamee
Paul
P
Health Economics Research Unit, Institute of Applied Health Sciences, University of Aberdeen, Aberdeen AB25 2ZD, UK. p.mcnamee@abdn.ac.uk
Ternent
Laura
L
Gbangou
Adjima
A
Newlands
David
D
D000328:Adult; D015982:Bias; D002050:Burkina Faso; D003164:Competitive Bidding / Q000191:economics*; D003362:Cost-Benefit Analysis; D003695:Delivery of Health Care / Q000191:economics*; D005260:Female; D005717:Games, Experimental; D006801:Humans; D007182:Income; D008297:Male; D012052:Reimbursement, Incentive / Q000191:economics*