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"If you have the flu symptoms, your asymptomatic spouse may better answer the willingness-to-pay question": Evidence from a double-bounded dichotomous choice model with heterogeneous anchoring

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  • Schwarzinger, Michaël
  • Carrat, Fabrice
  • Luchini, Stéphane

Abstract

The small sample size of contingent valuation (CV) surveys conducted in patients may have limited the use of the single-bounded (SB) dichotomous choice format which is recommended in environmental economics. In this paper, we explore two ways to increase the statistical efficiency of the SB format: (1) by the inclusion of proxies in addition to patients; (2) by the addition of a follow-up dichotomous question, i.e. the double-bounded (DB) dichotomous choice format. We found that patients (n=223) and spouses (n=64) answering on behalf of the patient had on average a similar willingness-to-pay for earlier alleviation of flu symptoms. However, a patient was significantly more likely to anchor his/her answer on the first bid as compared to a spouse. Finally, our original DB model with shift effect and heterogeneous anchoring reconciled the discrepancies found in willingness-to-pay statistics between SB and DB models in keeping with increased statistical efficiency.

Suggested Citation

  • Schwarzinger, Michaël & Carrat, Fabrice & Luchini, Stéphane, 2009. ""If you have the flu symptoms, your asymptomatic spouse may better answer the willingness-to-pay question": Evidence from a double-bounded dichotomous choice model with heterogeneous anchori," Journal of Health Economics, Elsevier, vol. 28(4), pages 873-884, July.
  • Handle: RePEc:eee:jhecon:v:28:y:2009:i:4:p:873-884
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    References listed on IDEAS

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    Cited by:

    1. Frédéric Salladarré & Dorothée Brécard & Sterenn Lucas & Pierrick Ollivier, 2016. "Are French consumers ready to pay a premium for eco-labeled seafood products? A contingent valuation estimation with heterogeneous anchoring," Agricultural Economics, International Association of Agricultural Economists, vol. 47(2), pages 247-258, March.
    2. Pierre-Alexandre Mahieu & Romain Craste & Bengt Kriström & Pere Riera, 2014. "Non-market valuation in France: An overview of the research activity," Working Papers hal-01087365, HAL.
    3. Luchini, Stéphane & Watson, Verity, 2013. "Uncertainty and framing in a valuation task," Journal of Economic Psychology, Elsevier, vol. 39(C), pages 204-214.

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