Comparing welfare estimates across stated preference and uncertainty elicitation formats for air quality improvements in Nairobi, Kenya

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dc.contributor.author Ndambiri, Hilary
dc.contributor.author Brouwer, Roy
dc.contributor.author Mungatana, Eric Dada
dc.date.accessioned 2016-06-06T08:45:53Z
dc.date.issued 2016-10
dc.description.abstract The effect of preference uncertainty on estimated willingness to pay (WTP) is examined using identical payment cards and alternative uncertainty elicitation procedures in three split samples, focusing on air quality improvement in Nairobi. The effect of the stochastic payment card (SPC) and polychotomous payment card (PPC) are compared with a conventional payment card (PC). Substantial financial support is found for improved air quality in Nairobi, with approximately 85 per cent of the whole sample stating a positive WTP. The way WTP values are elicited, with and without ability to express preference uncertainty, has significant effect on WTP welfare estimate. Allowing respondents to express experienced uncertainty when statingWTP value yields more conservative but less accurate WTP values for inclusion in policy analysis. The PPC seems to hold more promise since it is easier to understand and imposes less cognitive burden on survey participants than the SPC in a developing country context. en_ZA
dc.description.department Agricultural Economics, Extension and Rural Development en_ZA
dc.description.embargo 2016-12-30
dc.description.librarian hb2016 en_ZA
dc.description.uri http://journals.cambridge.org/action/displayJournal?jid=EDE en_ZA
dc.identifier.citation Ndambiri, H, Brouwer, R & Mungatana, ED 2016, 'Comparing welfare estimates across stated preference and uncertainty elicitation formats for air quality improvements in Nairobi, Kenya', Environment and Development Economics, vol. 21, no. 5, pp. 649-668. en_ZA
dc.identifier.issn 1355-770X (print)
dc.identifier.issn 1469-4395 (online)
dc.identifier.other 10.1017/S1355770X15000455
dc.identifier.uri http://hdl.handle.net/2263/52878
dc.language.iso en en_ZA
dc.publisher Cambridge University Press en_ZA
dc.rights © Cambridge University Press 2016 en_ZA
dc.subject Preference uncertainty en_ZA
dc.subject Air quality en_ZA
dc.subject Nairobi en_ZA
dc.subject Willingness to pay (WTP) en_ZA
dc.subject Stochastic payment card (SPC) en_ZA
dc.subject Polychotomous payment card (PPC) en_ZA
dc.subject Payment card (PC) en_ZA
dc.title Comparing welfare estimates across stated preference and uncertainty elicitation formats for air quality improvements in Nairobi, Kenya en_ZA
dc.type Postprint Article en_ZA


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