Using an Ex-ante Entreaty to Reduce Protest Zero Bias in Stated Preference Surveys – A Health Economic Case

Bonnichsen, Ole; Ladenburg, Jacob

doi:10.1016/s1755-5345(13)70010-1

Cited by 20 publications

(9 citation statements)

References 22 publications

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“…However, there are possible countermeasures against such external factors leading to for instance sample selectivity problems when omitting protest responses from analysis. One such is the use of protest reduction entreaties as suggested by for instance Bonnichsen and Ladenburg (2009) among others. They find that entreaties clearly instructing respondents that the payments in the SP survey are purely hypothetical are able to reduce the number of protesters significantly.…”

Section: Discussionmentioning

confidence: 99%

A Meta-study Investigating the Sources of Protest Behaviour in Stated Preference Surveys

Meyerhoff

Mørkbak

Olsen

2013

Environ Resource Econ

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It is well known that some percentage of respondents participating in Stated Preference surveys will not give responses which reflect their true preferences. One reason is protest behaviour. If the distribution of protest responses is not independent of respondent demographics, the elicitation method, the question format, etc., then simply expelling protesters from surveys will lead to sample selection issues. Furthermore, WTP estimates will not be comparable across surveys. This paper seeks to explore potential causes of protest behaviour through a meta-study based on data from 10 different surveys. The objective of the study is to examine the effect of respondent specific variables as well as survey specific variables on protest behaviour. Our results suggest that some of the differences in WTP typically observed between different demographic groups, different elicitation formats and different question formats might actually be attributed to inherent differences in the propensity to protest. Our results indicate that the propensity for respondents to exhibit protest behaviour when asked a stated preference type valuation question depends on a number of specific factors, respondent specific as well as survey specific.

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Section: Discussionmentioning

confidence: 99%

A Meta-study Investigating the Sources of Protest Behaviour in Stated Preference Surveys

Meyerhoff

Mørkbak

Olsen

2013

Environ Resource Econ

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“…The problem is that they did not distinguish between true zeros and protest responses. Recently, Mourato et al (2008) and Bonnichsen and Ladenburg (2010) studied the influence of an entreaty with respect to the reduction of protest zero responses alone. None of them, however, found the strong increase in protest responses that our Regulation scenario reveals.…”

Section: Discussionmentioning

confidence: 99%

A Test of Cheap Talk in Different Hypothetical Contexts: The Case of Air Pollution

Ami

Aprahamian

Chanel

et al. 2011

Environ Resource Econ

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“…The initial sample therefore includes respondents who have pouches without a filter. These respondents were not the target for the survey and were removed from the final sample.5 With regard to the distribution of protest preferences across treatment groups, it is shown inBonnichsen and Ladenburg (2009), that respondents in treatment A have a significantly higher share of respondents with protest preferences compared to the respondents in treatment B.O.Bonnichsen & J. Ladenburg/ Nordic Journal of Health Economics, Vol. 3 (2015), No.1, pp.…”

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confidence: 99%

Reducing Status Quo Bias in Choice Experiments

Bonnichsen

Ladenburg²

2015

Nordic J Health Eco

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To secure the validity and applicability of stated preference measures in economic analysis, hypothetical preferences must mimic real life preferences. For instance, people have a propensity to prefer what they already have when presented with alternatives that, all things being equal, seem to be superior, i.e. a status quo effect. However, in the stated preference literature, the tendency to choose the alternative representing the status quo situation seems to exceed real life status quo effects. Accordingly, status quo bias can be a problem. In the Choice Experiment literature, status quo bias is found to be a function of protest attitudes concerning the payment of the hypothetical good. In a split sample framework we test an ex-ante entreaty aimed at reducing payment based protest attitudes. We find that the entreaty reduces status quo bias and improves the internal validity of stated preferences in our data based on Swedish ostomates’ preferences for ostomy pouch quality changes. Published: Online January 2015. In print December 2015.

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Using an Ex-ante Entreaty to Reduce Protest Zero Bias in Stated Preference Surveys – A Health Economic Case

Cited by 20 publications

References 22 publications

A Meta-study Investigating the Sources of Protest Behaviour in Stated Preference Surveys

A Meta-study Investigating the Sources of Protest Behaviour in Stated Preference Surveys

A Test of Cheap Talk in Different Hypothetical Contexts: The Case of Air Pollution

Reducing Status Quo Bias in Choice Experiments

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