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Original Articles

An investigation of preference uncertainty in the contingent valuation study

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Pages 691-695 | Published online: 11 Jul 2007
 

Abstract

This study investigates the respondents’ preference uncertainty in the dichotomous choice (DC) contingent valuation study for gathering information on willingness to pay (WTP). To this end, we use polychotomous choice (PC) question and DC question with certainty level for two split samples. We find that incorporating preference uncertainty has a significant effect on the WTP estimates and, more importantly, the DC question with certainty level produces more efficient WTP estimate than the PC question.

Acknowledgement

This work was supported by the Brain Korea 21 project.

Notes

1 For more details, see Loomis and Ekstarnd (Citation1998).

2 The firm is Dongseo Research Inc. located in Seoul, Korea.

3 We have limited literature information about this phenomenon, but we believe that the outcome of this result is due to the cultural difference.

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