附加价值
答辩人
有界函数
经济
计量经济学
估价(财务)
数学
支付意愿
圣华金
统计
微观经济学
环境科学
土壤科学
法学
财务
数学分析
政治学
作者
Michael Hanemann,John B. Loomis,Barbara Kanninen
摘要
Abstract The statistical efficiency of conventional dichotomous choice contingent valuation surveys can be improved by asking each respondent a second dichotomous choice question which depends on the response to the first question—if the first response is “yes,” the second bid is some amount greater than the first bid; while, if the first response is “no,” the second bid is some amount smaller. This “double‐bounded” approach is shown to be asymptotically more efficient than the conventional, “singlebounded” approach. Using data from a survey of Californians regarding their willingness to pay for wetlands in the San Joaquin Valley, we show that, in a finite sample, the gain in efficiency can be very substantial.
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