Oaths and hypothetical bias

Results from experiments using an oath to eliminate hypothetical bias in stated preference valuation are presented. An oath has several potential advantages relative to other methods for reducing hypothetical bias. Our empirical results suggest that with an oath, mean hypothetical payments are not d...

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Veröffentlicht in:Journal of environmental management 2013-09, Vol.127, p.135-141
Hauptverfasser: Stevens, T.H., Tabatabaei, Maryam, Lass, Daniel
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container_title Journal of environmental management
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creator Stevens, T.H.
Tabatabaei, Maryam
Lass, Daniel
description Results from experiments using an oath to eliminate hypothetical bias in stated preference valuation are presented. An oath has several potential advantages relative to other methods for reducing hypothetical bias. Our empirical results suggest that with an oath, mean hypothetical payments are not different from mean actual payments and that when controlling for experimental participants' characteristics using regression analyses, the oath eliminated hypothetical bias. •Hypothetical bias is an important problem in stated preference valuation.•Previous methods for eliminating hypothetical bias often do not work well.•Tests a new method for eliminating hypothetical bias – an oath of honesty.•Oath eliminates hypothetical bias and further testing of this method is warranted.
doi_str_mv 10.1016/j.jenvman.2013.04.038
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Animal, plant and microbial ecology
Applied ecology
Bias
Biological and medical sciences
Conservation, protection and management of environment and wildlife
economic incentives
Economic valuation
Environmental management
Ethics
experimental design
Experimental economics
Fundamental and applied biological sciences. Psychology
General aspects
Humans
Hypothetical bias
Multivariate Analysis
Regression Analysis
Social Control, Informal
Stated preferences
Uncertainty
Valuation
title Oaths and hypothetical bias
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