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Stated and actual altruistic willingness to pay for insecticide‐treated nets in Nigeria: validity of open‐ended and binary with follow‐up questions

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  • Obinna Onwujekwe
  • Benjamin Uzochukwu

Abstract

Objectives: To determine whether the binary with follow‐up (BWFU) or open‐ended (OPED) contingent valuation question format would yield better valid estimates of altruistic willingness to pay (WTP) and examine the feasibility of using intra‐community altruistic contributions to procure insecticide‐treated nets (ITNs) for the poor in Nigeria. Methods: Structured questionnaires were used to elicit stated altruistic WTP from a random sub‐sample of respondents that had either the OPED or BWFU used to elicit WTP in Southeast Nigeria. One month after the survey the respondents were asked to redeem their WTP pledges. Construct validity was determined using econometric analyses, while phi correlation coefficient was used to determine criterion validity. Findings: More than 57% of the respondents were hypothetically willing to pay for altruism in both BWFU and OPED groups. Altruistic WTP was positively related to respondents' WTP for own nets (p

Suggested Citation

  • Obinna Onwujekwe & Benjamin Uzochukwu, 2004. "Stated and actual altruistic willingness to pay for insecticide‐treated nets in Nigeria: validity of open‐ended and binary with follow‐up questions," Health Economics, John Wiley & Sons, Ltd., vol. 13(5), pages 477-492, May.
    • Handle: RePEc:wly:hlthec:v:13:y:2004:i:5:p:477-492
    DOI: 10.1002/hec.857
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    2. Mandy Ryan & Verity Watson, 2009. "Comparing welfare estimates from payment card contingent valuation and discrete choice experiments," Health Economics, John Wiley & Sons, Ltd., vol. 18(4), pages 389-401, April.
    3. Kanya, Lucy & Sanghera, Sabina & Lewin, Alex & Fox-Rushby, Julia, 2019. "The criterion validity of willingness to pay methods: A systematic review and meta-analysis of the evidence," Social Science & Medicine, Elsevier, vol. 232(C), pages 238-261.
    4. Fonta William M. & Hyacinth E. Ichoku & Emmanuel Nwosu, 2011. "Contingent Valuation in Community-Based Project Planning: The Case of Lake Bamendjim Fishery Restocking in Cameroon," Working Papers 210, African Economic Research Consortium, Research Department.
    5. Kanya, Lucy & Saghera, Sabina & Lewin, Alex & Fox-Rushby, Julia, 2019. "The criterion validity of willingness to pay methods: a systematic review and meta-analysis of the evidence," LSE Research Online Documents on Economics 100741, London School of Economics and Political Science, LSE Library.
    6. Nicolò Barbieri & Massimiliano Mazzanti & Anna Montini & Andrea Rampa, 2022. "Risk Attitudes to Catastrophic Events: VSL and WTP for Insurance Against Earthquakes," Economics of Disasters and Climate Change, Springer, vol. 6(2), pages 317-337, July.
    7. Chan, Kai-Ying & Oerlemans, Leon A.G. & Volschenk, Jako, 2015. "On the construct validity of measures of willingness to pay for green electricity: Evidence from a South African case," Applied Energy, Elsevier, vol. 160(C), pages 321-328.
    8. Rinaldo Brau & Matteo Lippi Bruni & Anna Maria Pinna, 2010. "Public versus private demand for covering long-term care expenditures," Applied Economics, Taylor & Francis Journals, vol. 42(28), pages 3651-3668.
    9. Borghi, Josephine & Jan, Stephen, 2008. "Measuring the benefits of health promotion programmes: Application of the contingent valuation method," Health Policy, Elsevier, vol. 87(2), pages 235-248, August.
    10. M. Trapero‐Bertran & H. Mistry & J. Shen & J. Fox‐Rushby, 2013. "A Systematic Review And Meta‐Analysis Of Willingness‐To‐Pay Values: The Case Of Malaria Control Interventions," Health Economics, John Wiley & Sons, Ltd., vol. 22(4), pages 428-450, April.

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