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Perceptions of Food Waste: Is there a Numerosity Bias ?

Author

Listed:
  • Gilles Grolleau

    (ESSCA - ESSCA – École supérieure des sciences commerciales d'Angers = ESSCA Business School)

  • Naoufel Mzoughi

    (ECODEVELOPPEMENT - Ecodéveloppement - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)

  • Laura Solaroli

    (ISARA, LER - Laboratoire d'Études Rurales - UL2 - Université Lumière - Lyon 2 - ISARA)

Abstract

While individuals are expected to perceive similarly identical quantities, regardless of the used units (e.g., 1 ton or 1000 kg), several scholars suggest that consumers over-infer quantities when they are presented in bigger and phonetically-longer numbers. In two experimental studies, we examine this numerosity bias in the context of household food waste. Unlike previous scholars, manipulating numerosity revealed no effect: perceptions of food waste volume and likelihood to reduce it are not influenced by the used numeric value (2500 g vs. 2.5 kg; Study 1) nor the number of syllables (two kilos eight hundred seventy-five grams vs. three kilograms; Study 2).

Suggested Citation

  • Gilles Grolleau & Naoufel Mzoughi & Laura Solaroli, 2024. "Perceptions of Food Waste: Is there a Numerosity Bias ?," Post-Print hal-04805001, HAL.
    • Handle: RePEc:hal:journl:hal-04805001
    Note: View the original document on HAL open archive server: https://hal.inrae.fr/hal-04805001v1
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    File URL: https://hal.inrae.fr/hal-04805001v1/document
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    References listed on IDEAS

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    1. repec:cup:judgdm:v:12:y:2017:i:6:p:527-536 is not listed on IDEAS
    2. Jessica West & Carol Azab & K. C. Ma & Michael Bitter, 2020. "Numerosity: Forward and Reverse Stock Splits," Journal of Behavioral Finance, Taylor & Francis Journals, vol. 21(3), pages 323-335, July.
    Full references (including those not matched with items on IDEAS)

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