COMPARATIVE RELIABILITY OF THE DICHOTOMOUS CHOICE AND OPEN-ENDED CONTINGENT VALUATION TECHNIQUES

被引:119
|
作者
LOOMIS, JB
机构
[1] Division of Environmental Studies, Department of Agricultural Economics, University of California, Davis
关键词
D O I
10.1016/0095-0696(90)90053-2
中图分类号
F [经济];
学科分类号
02 ;
摘要
The comparative reliability of dichotomous choice and open-ended contingent valuation methods (CVM) is evaluated by resurvey of the same households 9 months after their original survey. Test-retest correlations on willingness to pay are statistically significant at the 1% level and range from 0.57 for the dichotomous choice CVM to 0.62 for the open-ended CVM. The test-retest correlations were not statistically different between dichotomous choice and open-ended CVM. A likelihood ratio test for temporal stability of each method's willingness to pay functions indicates stability half of the time for both methods. © 1990.
引用
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页码:78 / 85
页数:8
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