Pinto-Prades J L, Lopez-Nicolás A
Department of Economics and Center for Health Economics, Pompeu Fabra University, Barcelona, Spain.
Med Decis Making. 1998 Jul-Sep;18(3):287-94. doi: 10.1177/0272989X9801800306.
The purpose of this study was to test the existence of the plateau effect at the social level. The authors tried to confirm the preliminary conclusion that people may not be willing to trade off any longevity to improve the health state of a large number of people if the health states are mild enough. They tested this assumption using the person-tradeoff technique. They also used a parametric approach and a nonparametric approach to study the relationship between individual and social values. Results show the existence of the plateau effect in the context of resource allocation. Furthermore, with the nonparametric approach, a plateau effect in the middle part of the scale was also observed, suggesting that social preference may not be directly predicted from individual utilities. The authors caution against the possible framing effects that may be present in these kinds of questions.
本研究的目的是检验社会层面上高原效应的存在。作者试图证实这一初步结论：如果健康状况足够轻微，人们可能不愿意以牺牲任何寿命为代价来改善大量人群的健康状况。他们使用个人权衡技术来检验这一假设。他们还采用参数方法和非参数方法来研究个人价值观与社会价值观之间的关系。结果表明在资源分配的背景下存在高原效应。此外，采用非参数方法时，在量表中部也观察到了高原效应，这表明社会偏好可能无法直接从个人效用中预测出来。作者告诫要警惕这类问题中可能存在的框架效应。
