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Willingness‐to‐Pay for Safe Vegetables: A Comparative Analysis Between Wet Market and Supermarket Shoppers in Urban Cambodia

Author

Listed:
  • Mercy Mwambi
  • Pepijn Schreinemachers
  • Naphtal Habiyaremye
  • Lyda Hok
  • Uon Bonnarith
  • Paul Ebner

Abstract

Consumers in low‐ and middle‐income countries are increasingly worried about food safety, but markets for safe produce remain underdeveloped and do not offer farmers a premium price. This study used the Becker–DeGroot–Marschak experimental auction design to identify the market for safe vegetables by assessing consumers' willingness to pay for both internationally and locally certified vegetables. The study involved 585 shoppers at wet markets and supermarkets in Phnom Penh, Cambodia. The factors influencing willingness to pay were analysed using Pooled Ordinary Least Squares. Compared to uncertified vegetables, shoppers were willing to pay 100% more for those certified as United States Department of Agriculture Organic and 55% more for those certified under Cambodian Global Agricultural Practices. Providing information about both types of certification increased shoppers' willingness to pay for certified vegetables, with a greater increase for the international label than the local one. For the local label, information only increased willingness to pay among supermarket shoppers, not wet market shoppers. Our findings highlight the importance of age and income in shaping consumers' willingness to pay for safe produce. We offer recommendations to improve food purchasing choices in low‐income countries, emphasising the need for food safety information that is tailored to different populations.

Suggested Citation

  • Mercy Mwambi & Pepijn Schreinemachers & Naphtal Habiyaremye & Lyda Hok & Uon Bonnarith & Paul Ebner, 2026. "Willingness‐to‐Pay for Safe Vegetables: A Comparative Analysis Between Wet Market and Supermarket Shoppers in Urban Cambodia," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 70(1), pages 222-238, January.
  • Handle: RePEc:bla:ajarec:v:70:y:2026:i:1:p:222-238
    DOI: 10.1111/1467-8489.70061
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    References listed on IDEAS

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    1. Gustafson, Christopher R. & Lybbert, Travis J. & Sumner, Daniel A., 2016. "Consumer knowledge affects valuation of product attributes: Experimental results for wine," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 65(C), pages 85-94.
    2. Chege, Christine G.K. & Sibiko, Kenneth W. & Wanyama, Rosina & Jager, Matthias & Birachi, Eliud, 2019. "Are consumers at the base of the pyramid willing to pay for nutritious foods?," Food Policy, Elsevier, vol. 87(C), pages 1-1.
    3. Wertheim-Heck, Sigrid C.O. & Vellema, Sietze & Spaargaren, Gert, 2015. "Food safety and urban food markets in Vietnam: The need for flexible and customized retail modernization policies," Food Policy, Elsevier, vol. 54(C), pages 95-106.
    4. Naphtal Habiyaremye & Nadhem Mtimet & Emily A. Ouma & Gideon A. Obare, 2023. "Consumers' willingness to pay for safe and quality milk: Evidence from experimental auctions in Rwanda," Agribusiness, John Wiley & Sons, Ltd., vol. 39(4), pages 1049-1074, October.
    5. A. Banerji & Jeevant Rampal, 2020. "Reverse Endowment Effect for a New Product," American Journal of Agricultural Economics, John Wiley & Sons, vol. 102(3), pages 786-805, May.
    6. Mensah Tawiah Cobbinah & Samuel Arkoh Donkoh & Isaac Gershon Kodwo Ansah, 2018. "Consumers’ willingness to pay for safer vegetables in Tamale, Ghana," African Journal of Science, Technology, Innovation and Development, Taylor & Francis Journals, vol. 10(7), pages 823-834, November.
    7. Wongprawmas, Rungsaran & Canavari, Maurizio, 2017. "Consumers’ willingness-to-pay for food safety labels in an emerging market: The case of fresh produce in Thailand," Food Policy, Elsevier, vol. 69(C), pages 25-34.
    8. Hoffmann, Vivian & Moser, Christine & Saak, Alexander, 2019. "Food safety in low and middle-income countries: The evidence through an economic lens," World Development, Elsevier, vol. 123(C), pages 1-1.
    9. Achilleas Vassilopoulos & Andreas C. Drichoutis & Rodolfo M. Nayga, 2024. "Reference dependence, expectations and anchoring in the Becker-DeGroot-Marschak mechanism," Theory and Decision, Springer, vol. 97(4), pages 637-683, December.
    10. Daniele Asioli & Adriana Mignani & Frode Alfnes, 2021. "Quick and easy? Respondent evaluations of the Becker–DeGroot–Marschak and multiple price list valuation mechanisms," Agribusiness, John Wiley & Sons, Ltd., vol. 37(2), pages 215-234, April.
    11. Michael Grimm & Nathalie Luck & Franziska Steinhübel, 2023. "Consumers' willingness to pay for organic rice: Insights from a non‐hypothetical experiment in Indonesia," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 67(1), pages 83-103, January.
    12. Timothy N. Cason & Charles R. Plott, 2014. "Misconceptions and Game Form Recognition: Challenges to Theories of Revealed Preference and Framing," Journal of Political Economy, University of Chicago Press, vol. 122(6), pages 1235-1270.
    13. Roselyne Alphonce & Frode Alfnes, 2017. "Eliciting Consumer WTP for Food Characteristics in a Developing Context: Application of Four Valuation Methods in an African Market," Journal of Agricultural Economics, Wiley Blackwell, vol. 68(1), pages 123-142, February.
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