Survey modes comparison in contingent valuation: Internet panels and mail surveys.
contingent valuation
internet panels
mailed survey
mode effects
willingness to pay
Journal
Health economics
ISSN: 1099-1050
Titre abrégé: Health Econ
Pays: England
ID NLM: 9306780
Informations de publication
Date de publication:
02 2020
02 2020
Historique:
received:
23
05
2019
revised:
16
09
2019
accepted:
19
11
2019
pubmed:
13
12
2019
medline:
19
5
2021
entrez:
13
12
2019
Statut:
ppublish
Résumé
Stated preferences methods are extensively applied in health economics to elicit preferences. Although mailed surveys were commonly used to collect data, internet panel (IP) surveys are being increasingly used. This raises questions about the validity of responses and estimated willingness-to-pay (WTP) values generated from IP surveys. We conduct the first study in health to compare a contingent valuation IP survey with a mailed survey using the electoral roll. Our IP has a higher response rate and lower item missing response rate. The difference is reduced but remains when restricting comparisons with valid WTPs. Sample characteristics differ, with significant differences between modes for gender, age, income, and attitudes and knowledge. Although difference in WTP values exist, with the IP resulting in higher values, we find limited evidence that such differences are statistically significant. The mail survey has lower initial cost per response; however, once restricting samples to valid WTP responses with nonmissing respondent information, the cost per response across modes is similar. Our results, suggesting that IPs generate valid and cost-effective values, are encouraging as researchers move increasingly to IPs to collect preference data.
Substances chimiques
Illicit Drugs
0
Types de publication
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
234-242Subventions
Organisme : Chief Scientist Office
ID : HERU1
Pays : United Kingdom
Informations de copyright
© 2019 John Wiley & Sons, Ltd.
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