Scope effects of respondent uncertainty in contingent valuation : evidence from motorized emission reductions in the city of Nairobi, Kenya

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dc.contributor.author Ndambiri, Hilary
dc.contributor.author Mungatana, Eric Dada
dc.contributor.author Brouwer, Roy
dc.date.accessioned 2016-06-06T08:51:09Z
dc.date.issued 2017
dc.description.abstract This study analyzed the scope effects of respondent uncertainty in contingent valuation (CV) by evaluating whether willingness to pay (WTP) estimates were sensitive to changes in the magnitudes of motorized emission reductions in the city of Nairobi, Kenya. The WTP estimates were elicited through the conventional payment card (PC), stochastic payment card (SPC) and the polychotomous payment card (PPC) formats. While SPC and PPC formats were used to capture respondent uncertainty, the PC format captured respondent certainty regarding the amounts individuals were WTP for emission reductions. Based on parametric and nonparametric analysis, the results show that certain (PC) respondents stated significantly larger WTP amounts for larger emission reductions than for smaller reductions. Conversely, uncertain (SPC and PPC) respondents stated smaller amounts for larger emission reductions than certain (PC) respondents. The implication is that though respondents were sensitive to the scope of motorized emission reductions, respondent uncertainty lowered their sensitivity to scope. en_ZA
dc.description.department Agricultural Economics, Extension and Rural Development en_ZA
dc.description.embargo 2017-05-06
dc.description.librarian hb2016 en_ZA
dc.description.sponsorship CEEPA, University of Pretoria, Republic of South Africa and CIC, Vrije University Amsterdam, The Netherlands. en_ZA
dc.description.uri http://journals.cambridge.org/action/displayJournal?jid=EDE en_ZA
dc.identifier.citation Hilary Ndambiri, Eric Mungatana & Roy Brouwer (2017) Scope effects of respondent uncertainty in contingent valuation: evidence from motorized emission reductions in the city of Nairobi, Kenya, Journal of Environmental Planning and Management, 60:1, 22-46, DOI: 10.1080/09640568.2016.1140024. en_ZA
dc.identifier.issn 0964-0568 (print)
dc.identifier.issn 1360-0559 (online)
dc.identifier.other 10.1080/09640568.2016.1140024
dc.identifier.uri http://hdl.handle.net/2263/52879
dc.language.iso en en_ZA
dc.publisher Taylor and Francis en_ZA
dc.rights © 2016 Newcastle University. This is an electronic version of an article published in Journal of Environmental Planning and Management, vol. 60, no. 1, pp. 22-46, 2017. doi : 10.1080/09640568.2016.1140024. Journal of Environmental Planning and Management is available online at : http://www.tandfonline.comloi/cjep20. en_ZA
dc.subject Respondent uncertainty en_ZA
dc.subject Scope sensitivity en_ZA
dc.subject Valuation formats en_ZA
dc.subject Motorized emission reductions en_ZA
dc.subject Contingent valuation (CV) en_ZA
dc.subject Willingness to pay (WTP) en_ZA
dc.subject Payment card (PC) en_ZA
dc.subject Stochastic payment card (SPC) en_ZA
dc.subject Polychotomous payment card (PPC) en_ZA
dc.title Scope effects of respondent uncertainty in contingent valuation : evidence from motorized emission reductions in the city of Nairobi, Kenya en_ZA
dc.type Postprint Article en_ZA


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