Sensitivity to scale in contingent valuation: the importance of the budget constraint
Sensitivity to scale in contingent valuation: the importance of the budget constraint
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DOI：
10.1016/j.jhealeco.2004.08.002
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发表时间：
2005-05-01
影响因子：
3.5
通讯作者：
Smith, RD
中科院分区：
文献类型：
--
作者：
Smith, RD
支付意愿（WTP）值对规模变化的可能不敏感性继续引起或有价值（CV）文献的关注。虽然这种现象的几个原因已经提出，经验证据既支持和驳斥不敏感。本文提出的数据表明，不敏感性可能会显着确定个人的预算约束：较高的收入比例表示的支付意愿代表，更大的不敏感性，支付意愿的变化规模的好，无论潜在的边际效用的变化。概述了CV研究在医疗保健中的方法学意义。(c)2004 Elsevier B.V.保留所有权利。
The possible insensitivity of willingness-to-pay (WTP) values to changes in scale continues to cause concern within the contingent valuation (CV) literature. Although several reasons for this phenomenon have been suggested, empirical evidence both supports and refutes insensitivity. This paper presents data that suggest that insensitivity may be significantly determined by the individual's budget constraint: the higher the proportion of income the expressed WTP represents, the greater the insensitivity of that WTP to changes in the scale of the good, irrespective of changes in underlying marginal utility. The methodological implication for CV studies in health care is outlined. (c) 2004 Elsevier B.V. All rights reserved.