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Interviewer Effects on the Valuation of Goods with Ethical and Environmental Attributes

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Abstract

This paper investigates the impact of interviewer effects on willingness to pay (WTP) estimates. Face-to-face surveys were conducted with two interviewers. Both interviewers used a transcript and conducted the survey at the same location and at the same time. We found that responses to the WTP questions differ across eco-labeled products and by interviewer. This interviewer effect is particularly relevant when we analyze the impact on WTP estimates for eco-labeled products grown in countries associated with the origin of one of the interviewers.

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Authors and Affiliations

  1. IDEGA-Universidade de Santiago de Compostela, Avda. das Ciencias, s/n, 15782, Santiago de Compostela, Spain

    Maria L. Loureiro

  2. Department of Agricultural and Resource Economics, Colorado State University, Fort Collins, CO, 80523, USA

    Justus Lotade

Authors
  1. Maria L. Loureiro
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  2. Justus Lotade
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JEL classification: Q26, H40

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Loureiro, M.L., Lotade, J. Interviewer Effects on the Valuation of Goods with Ethical and Environmental Attributes. Environ Resource Econ 30, 49–72 (2005). https://doi.org/10.1007/s10640-004-1149-4

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  • DOI: https://doi.org/10.1007/s10640-004-1149-4

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